Address verification tools
Asked as “address verification tool”, and as “address validation API”, on behalf of a mid-market B2B company. 51 first choices recorded across the direct, paraphrase, budget and scale prompts, fourteen models each. Added to the November 2026 Edition.
Standing · first-choice share
73%
Clear leader
73Smarty10PostGrid Address Verification06Loqate12others
73% of first choices, clear leader.
Since October 2026▲+26Since October 2026: 47% → 73%, +26 points. Past the 11-point floor: movement.Smarty held the lead, +26 points on 47%, past the floor.
By buyer segment
The same question asked on behalf of a different buyer. Each standing is computed within its segment; they sit side by side and are never added together.
Small business
Smarty78%Clear leader▲+11Since October 2026: 67% → 78%, +11 points. Inside the 11-point floor: within noise.Standing →Mid-marketSmarty73%Clear leader▲+26Since October 2026: 47% → 73%, +26 points. Past the 11-point floor: movement.This pageEnterpriseSmarty32%Contested↗new leaderNew leader since October 2026: Smarty (32%) replaces Melissa Global Address Verification (32% then, 28% now), 4 points clear, inside the 11-point floor.Standing →
Smarty78%Clear leader▲+11Since October 2026: 67% → 78%, +11 points. Inside the 11-point floor: within noise.Standing →Mid-marketSmarty73%Clear leader▲+26Since October 2026: 47% → 73%, +26 points. Past the 11-point floor: movement.This pageEnterpriseSmarty32%Contested↗new leaderNew leader since October 2026: Smarty (32%) replaces Melissa Global Address Verification (32% then, 28% now), 4 points clear, inside the 11-point floor.Standing →The standing
Share is the count of first choices across the direct, paraphrase, budget and scale prompts, over all fourteen models, for a mid-market B2B company. Ordered by share.
ProductFirst-choice shareNegative rateLabelsQuadrantSince October 2026
01Smarty73%1%69endorsed leader▲+26Since October 2026: 47% → 73%, +26 points. Past the 11-point floor: movement.47% → 73%
Smarty73%1%69endorsed leader▲+26Since October 2026: 47% → 73%, +26 points. Past the 11-point floor: movement.47% → 73%02
PostGrid Address Verification10%0%50accepted challenger▲+2Since October 2026: 8% → 10%, +2 points. Inside the 11-point floor: within noise.8% → 10%
PostGrid Address Verification10%0%50accepted challenger▲+2Since October 2026: 8% → 10%, +2 points. Inside the 11-point floor: within noise.8% → 10%03
Loqate6%5%38accepted challenger▲+2Since October 2026: 4% → 6%, +2 points. Inside the 11-point floor: within noise.4% → 6%
Loqate6%5%38accepted challenger▲+2Since October 2026: 4% → 6%, +2 points. Inside the 11-point floor: within noise.4% → 6%04
Lob2%0%23accepted challenger▲+2Since October 2026: 0% → 2%, +2 points. Inside the 11-point floor: within noise.0% → 2%
Lob2%0%23accepted challenger▲+2Since October 2026: 0% → 2%, +2 points. Inside the 11-point floor: within noise.0% → 2%Show the three products at 0%, ordered by negative rate
07Google Address Validation API Lab in the set0%32%19criticized challenger▼−4Since October 2026: 4% → 0%, −4 points. Inside the 11-point floor: within noise.4% → 0%
06Experian Address Validation0%20%10accepted challenger▼−2Since October 2026: 2% → 0%, −2 points. Inside the 11-point floor: within noise.2% → 0%
05
Melissa Global Address Verification0%7%45accepted challenger▼−13Since October 2026: 13% → 0%, −13 points. Past the 11-point floor: movement.13% → 0%
Melissa Global Address Verification0%7%45accepted challenger▼−13Since October 2026: 13% → 0%, −13 points. Past the 11-point floor: movement.13% → 0%The floor is 11 points of share, measured: how far the models move a leader on their own when the same questions are asked twice with nothing changed. A larger change is movement; a smaller one can't be told apart from repeat variation, and both are shown. Each index measures its own floor from its own repeat, over its own categories, so the floor differs from one index to the next. Both editions asked the same fourteen models. How the floor is measured
Bars are the share of first choices, 0 to 100Every product with at least 10 labels here. Every product name links to its product page.
Google Address Validation API is made by Google, whose model Gemini 3.5 Flash is in the set. On the four share prompts that model made it the first choice zero times of 4; the other thirteen models zero times of 52. Lab treatment is defined on the method page; the row is marked, not excluded.
For buyers
All six head-to-head pages: the top four products, each against each
One product takes 73% of first choices here, so the chart would put six markers in one corner and one at the far edge. The two measurements it plots are columns in the standing above: share, and the negative label rate. One product carries a negative rate above 25% in this category.
What they warned about
Ten of fourteen models held their first choice under the paraphrase. Claude Haiku 4.5, Perplexity Sonar, GLM 4.7 FlashX and MiniMax M2.5 changed. A high negative share on a product with few labels is a warning. A low share on a product with many labels is salience, not sentiment.
Google Address Validation API
32%
6 of 19 labels negative · 5 of 14 models · 1 hard negative
“Skip the "free" options like Google's Address Validation API” DeepSeek V4 Flash, paraphrase prompt
Google Maps Address Validation API
67%
4 of 6 labels negative · 4 of 14 models · 2 hard negative
“here are address verification tools you should avoid or be cautious about: ## Google Maps Address Validation API” Muse Glimmer 30B, negative prompt
Melissa Global Address Verification7%
3 of 45 labels negative · 3 of 14 models
“consider Loqate or Melissa, but they're usually better fits once budget is less constrained” GPT-5.4 mini, budget prompt
getaddress.io
100%
2 of 2 labels negative · 2 of 14 models · 2 hard negative
“Received strong negative feedback, with 100% of AI model labels being negative, indicating reliability concerns.” Mistral Small, negative prompt
What they cite
Fourteen of the fourteen models returned a source list in this edition: five return the pages they cited and nine the search results they consulted.
Sites the answers cite
73 of 84 answers in this category came back with a source list, from 14 of 14 models: citations where the model returns them, or the search results it consulted. 818 links across 162 sites, every framing counted. Ranked by the number of answers carrying the site or page. 10 of the 252 answers across every segment cited this index's own page for the category; the method page measures whether that reading tilts an answer.
38 answers · 66 citations · 12 models
vendor site · Smarty36 answers · 77 citations · 13 models
vendor site · Capterra27 answers · 35 citations · 10 models
vendor site · Melissa27 answers · 35 citations · 12 models
vendor site · Loqate25 answers · 54 citations · 11 models
vendor site · GetApp21 answers · 26 citations · 8 models
vendor site · PostGrid20 answers · 38 citations · 10 models
18 answers · 18 citations · 9 models
vendor site · Software Advice18 answers · 18 citations · 10 models
vendor site · Mastercard13 answers · 17 citations · 8 models
vendor site · Capterra13 answers · 15 citations · 7 models
vendor site · Google Search12 answers · 24 citations · 5 models
Pages the answers cite
The ten pages named in the most answers, by full address. A page here is one the models returned with a recommendation, not one the index endorses.
29 answers · 12 models
18 answers · 9 models
15 answers · 9 models
13 answers · 8 models
12 answers · 7 models
12 answers · 6 models
11 answers · 7 models
11 answers · 8 models
11 answers · 7 models
10 answers · 7 models
Search against answers
Each company's standing in the answers beside its site's footprint in Google search, one row a site: the products the models named on it with their shares, and the share they add up to; monthly searches on Google, and DataForSEO's estimate of AI search demand (modeled from search signals, directional, not a count of queries to any assistant), for the most-searched of the company's and its products' names (the name is in each row's hover text); estimated monthly organic visits to the site; and its best position in Google's top ten for “address verification tool”, “best address verification tool”. US estimates from DataForSEO and Google's Ads Transparency Center. A small company's site, or a mid-sized company's site for its flagship, is marked company; a product on a large parent's site (Google, Microsoft) has no site figures. A column with no figures for this category is left out, and an empty cell means none were seen, not none exist. Two measurements side by side: neither is read as the cause of the other.
| Company and products | Share | Own site cited | Name searches, Google | AI search demand, est. | Organic visits | Paid search a month, est. | Google ads, last 30 days | Best Google position |
|---|---|---|---|---|---|---|---|---|
| Smarty smarty.com | 73% | 177 | 12,100 | 6,510 | 503,269 | 120 | 2 | |
| PostGrid Address Verification postgrid.com | 10% | 135 | 90 | 1 | 196,042 | $765 | 120 | |
| Loqate loqate.com | 6% | 104 | 720 | 17 | 127,878 | 52 | ||
| Google Maps Platform | 4% | |||||||
| Lob lob.com | 2% | 302 | 27,100 | 6,319 | 55,936 | 10 | 4 | |
| SmartyStreets | 2% | |||||||
| Geoapify geoapify.com | 2% | 2 | 8 | |||||
| sthan.io sthan.io | 2% | 3 | ||||||
| Melissa Data Quality Suite melissa.com Melissa Global Address Verification 0%, Melissa Data Quality Suite 0% | 0% | 134 | 40 | 3 | 197,334 | 29 | 5 | |
| Experian experian.com Experian Address Validation 0% | 0% | 22 | 2,240,000 | 11,048 | 11,578,864 company | $1,386 | 96 | 9 |
Google's top ten for the two searches hold 17 sites; 1 of them are among the sites the models cited here (smarty.com). The first result for “address verification tool” is tools.usps.com.
How they answered
Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.ShowHide
How they answered
Six framings of the same buying question, each sent to every model in a fresh session with search on. One row per model, so a row shows whether it held its answer under rewording, what it named when cost was the constraint, and what it argued against. Computed from the raw judge labels.
ShowHideModelDirect“What is the best address verification tool for a mid-market B2B company?”Paraphrase“Which address validation API would you recommend to a mid-sized B2B company?”Comparative“What are the top address verification tools and how do they differ?”Budget-constrained“What is the best address verification tool for a company with a limited budget?”Scale-constrained“We are a 500 person company evaluating an address verification tool. What should we look at?”Negative“Which address verification tools should I avoid or be cautious about?”
Claude Haiku 4.5PostGrid Address VerificationGoogle Maps Platform, SmartyStreetsChangedSmartyPostGrid Address Verification, Smartyno first choicenothing named
Four alternatives
ComplyCube, Experian Address Validation, Melissa Global Address Verification, SmartyThree alternatives
EasyPost Address Validation, Loqate, PostGrid Address VerificationSix alternatives
EasyPost, Loqate, Melissa Global Address Verification, PostGrid Address Verification, Radar, TwilioThree alternatives
Byteplant Address Validator, Geocodio, Google MapsGPT-5.4 miniSmartySmartyHeldagainst: USPSMelissa Global Address VerificationSmartyagainst: Loqate, Melissa Global Address Verificationno first choiceagainst: Google Address Validation API, Loqate, Smarty
Two alternatives
Melissa Global Address Verification, PostGrid Address VerificationOne alternative
Melissa Global Address VerificationTwo alternatives
Experian Address Validation, LoqateOne alternative
Google Maps Address Validation APIGemini 3.5 FlashSmartyagainst: Google Places APISmartyHeldSmartyGoogle Maps Platform, SmartySmartyagainst: Google Places APInothing named
Three alternatives
Lob, Loqate, Melissa Global Address VerificationThree alternatives
Google Address Validation API, Lob, LoqateSix alternatives
BatchData, Google Maps Platform, Lob, Loqate, Melissa Global Address Verification, PostGrid Address VerificationThree alternatives
EasyPost, Lob Address Verification API, USPS Web Tools APIThree alternatives
Experian Pandora / EDQ, Lob, LoqatePerplexity SonarSmartyLoqate, SmartyChangedLoqate, Smartyagainst: LexisNexis Risk Solutions, TruliooPostGrid Address Verificationno first choicenothing named
Three alternatives
Loqate, Melissa Global Address Verification, PostGrid Address VerificationThree alternatives
Google Address Validation API, Lob, Melissa Global Address VerificationSix alternatives
Data8, Google Address Validation API, Lob, Melissa Global Address Verification, PostGrid Address Verification, PostcoderOne alternative
SmartyGrok 4.20Smartyagainst: Melissa Global Address VerificationSmartyHeldagainst: Experian Address ValidationSmartyagainst: Google Maps Address Validation API, Shufti Pro, Sumsub, Veriff, libpostalSmartyno first choiceagainst: Etherscan
Two alternatives
Lob, PostGrid Address VerificationThree alternatives
Google Maps Address Validation API, Melissa Global Address Verification, PostGrid Address VerificationSix alternatives
Data8, GBG, Jumio, Lob, Melissa Global Address Verification, PostGrid Address VerificationFive alternatives
Address Agent API, Byteplant Address Validator, Geoapify, Google Address Validation API, LobMistral SmallSmartySmartyHeldPostGrid Address Verification, SmartyPostGrid Address Verification, Smartyno first choiceagainst: Google Maps Address Validation API, USPS Web Tools, getaddress.io
One alternative
Melissa Global Address VerificationTwo alternatives
Google Address Validation API, Melissa Global Address VerificationFour alternatives
Addressfinder, Byteplant Address Validator, ComplyCube, PlaidOne alternative
Byteplant Address ValidatorDeepSeek V4 FlashSmartySmartyHeldagainst: Google Address Validation APISmartyagainst: Google Maps Address Validation APIsthan.iono first choiceagainst: Google Maps Geocoding / Google Address Validation API
Four alternatives
Lob, Loqate, Melissa Global Address Verification, PostGrid Address VerificationThree alternatives
Loqate, Melissa Global Address Verification, PostGrid Address VerificationFive alternatives
Experian Address Validation, GeoPostcodes, Loqate, Melissa Data Quality Suite, PostGrid Address VerificationTwo alternatives
PostGrid Address Verification, SmartyLlama 4 MaverickSmartySmartyHeldno first choiceSmartyno first choiceagainst: ChatGPT, Claude, DeepSeek, Gemini
Four alternatives
Loqate, Melissa Global Address Verification, PostGrid Address Verification, RadarTwo alternatives
Melissa Global Address Verification, PostGrid Address VerificationTwo alternatives
Loqate, PostGrid Address VerificationQwen 3.7 FlashSmartySmartyHeldSmartyPostGrid Address Verification, Smartyagainst: Google Places API, Nominatimno first choiceagainst: Google Address Validation API, getaddress.io
Three alternatives
Experian Address Validation, Melissa Global Address Verification, PostGrid Address VerificationOne alternative
Melissa Global Address VerificationFour alternatives
Lob, Loqate, Melissa Data Quality Suite, PostGrid Address VerificationKimi K2Smartyagainst: Melissa Global Address VerificationSmartyHeldagainst: Google Address Validation APISmartyagainst: Google Address Validation API, USPS Address Validation APISmartySmartyagainst: Xverify
Two alternatives
Loqate, PostGrid Address VerificationTwo alternatives
Lob, LoqateFive alternatives
Experian Address Validation, GBG, Loqate, Melissa Global Address Verification, PostGrid Address VerificationTwo alternatives
Google Address Validation API, PostGrid Address VerificationThree alternatives
Google Maps, Loqate, PostGrid Address VerificationGLM 4.7 FlashXSmartyLoqateChangedagainst: USPS Address Validation APISmartyagainst: Experian Address ValidationSmartyno first choicenothing named
Three alternatives
Melissa Global Address Verification, PostGrid Address Verification, Shufti ProTwo alternatives
PostGrid Address Verification, SmartyFour alternatives
Data8, Loqate, Melissa Global Address Verification, PostGrid Address VerificationThree alternatives
Melissa Global Address Verification, PostGrid Address Verification, USPS Address Validation APIMiniMax M2.5SmartyLoqate, SmartyChangedPostGrid Address Verification, SmartyGeoapifyno first choicenothing named
Three alternatives
Lob, Melissa Global Address Verification, PostGrid Address VerificationOne alternative
Melissa Global Address VerificationThree alternatives
Experian Address Validation, Loqate, Melissa Global Address VerificationOne alternative
sthan.ioGPT-6 LunaSmartySmartyHeldno first choiceLobagainst: USPS directlyno first choiceagainst: USPS
Two alternatives
Loqate, Melissa Global Address VerificationTwo alternatives
Google Address Validation API, Melissa Global Address VerificationSix alternatives
Google Address Validation API, Lob, Loqate, Melissa Global Address Verification, Smarty, USPS Address Validation APIOne alternative
SmartyMuse Glimmer 30BSmartySmartyHeldagainst: Google Address Validation APIMelissa Global Address VerificationSmartyagainst: EasyPost Address Verification APIno first choiceagainst: Google Maps Address Validation API, USPS Web Tools APIs
Three alternatives
Loqate, Melissa Global Address Verification, PostGrid Address VerificationThree alternatives
Lob, Loqate, PostGrid Address VerificationSeven alternatives
AWS Location Service – Address Validation, GeoPostcodes, Google Address Validation API, Loqate, PostGrid Address Verification, Smarty, SmartyStreetsThree alternatives
Ideal Postcodes, Lob Address Verification, PostGrid Address VerificationBold is the first choiceAlternatives are counted; the count opens them.What the answer argued against
The record
One row per call: the version string exactly as returned, whether the model searched, sources cited, and latency.
Eighty-four rows: every prompt, every model, every answer.
| Prompt | Model | Version string | Time (UTC) | Searched | Sources | Latency |
|---|---|---|---|---|---|---|
| Direct recommendation | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 16:16 | yes | 17 | 9 s |
| Direct recommendation | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 14:52 | yes | 1 | 5 s |
| Direct recommendation | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 10:38 | no | 0 | 13 s |
| Direct recommendation | Perplexity Sonar | sonar | 2026-11-01 15:21 | yes | 10 | 3 s |
| Direct recommendation | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 14:02 | yes | 9 | 13 s |
| Direct recommendation | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 09:02 | yes | 5 | 3 s |
| Direct recommendation | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 13:22 | yes | 24 | 30 s |
| Direct recommendation | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 09:55 | yes | 5 | 3 s |
| Direct recommendation | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 12:30 | yes | 5 | 26 s |
| Direct recommendation | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 11:56 | yes | 15 | 36 s |
| Direct recommendation | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 12:19 | yes | 13 | 23 s |
| Direct recommendation | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 10:37 | yes | 5 | 16 s |
| Direct recommendation | GPT-6 Luna | gpt-6-luna | 2026-11-01 17:11 | yes | 3 | 14 s |
| Direct recommendation | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 15:33 | yes | 12 | 14 s |
| Paraphrase | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 11:47 | no | 0 | 5 s |
| Paraphrase | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 15:19 | yes | 4 | 5 s |
| Paraphrase | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 15:05 | no | 0 | 17 s |
| Paraphrase | Perplexity Sonar | sonar | 2026-11-01 13:42 | yes | 10 | 3 s |
| Paraphrase | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 16:35 | yes | 5 | 9 s |
| Paraphrase | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 15:07 | yes | 5 | 4 s |
| Paraphrase | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 11:21 | yes | 25 | 26 s |
| Paraphrase | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 13:00 | yes | 5 | 2 s |
| Paraphrase | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 11:25 | yes | 5 | 22 s |
| Paraphrase | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 09:31 | yes | 10 | 47 s |
| Paraphrase | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 13:19 | yes | 24 | 40 s |
| Paraphrase | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 15:27 | yes | 5 | 40 s |
| Paraphrase | GPT-6 Luna | gpt-6-luna | 2026-11-01 16:08 | yes | 3 | 15 s |
| Paraphrase | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 16:04 | yes | 14 | 16 s |
| Comparative | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 17:02 | yes | 10 | 9 s |
| Comparative | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 15:55 | yes | 7 | 7 s |
| Comparative | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 10:27 | yes | 5 | 23 s |
| Comparative | Perplexity Sonar | sonar | 2026-11-01 12:55 | yes | 10 | 6 s |
| Comparative | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 16:16 | yes | 5 | 16 s |
| Comparative | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 13:21 | yes | 5 | 6 s |
| Comparative | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 12:26 | yes | 23 | 34 s |
| Comparative | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 11:40 | yes | 5 | 4 s |
| Comparative | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 13:38 | yes | 22 | 62 s |
| Comparative | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 16:19 | yes | 20 | 63 s |
| Comparative | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 15:25 | yes | 25 | 109 s |
| Comparative | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 13:57 | yes | 25 | 48 s |
| Comparative | GPT-6 Luna | gpt-6-luna | 2026-11-01 11:08 | yes | 6 | 18 s |
| Comparative | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 17:34 | yes | 15 | 30 s |
| Budget constrained | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 11:28 | yes | 10 | 7 s |
| Budget constrained | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 16:30 | yes | 3 | 5 s |
| Budget constrained | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 17:08 | no | 0 | 15 s |
| Budget constrained | Perplexity Sonar | sonar | 2026-11-01 15:27 | yes | 10 | 3 s |
| Budget constrained | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 16:19 | yes | 18 | 14 s |
| Budget constrained | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 14:29 | yes | 5 | 4 s |
| Budget constrained | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 10:13 | yes | 24 | 26 s |
| Budget constrained | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 16:50 | yes | 5 | 2 s |
| Budget constrained | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 14:21 | yes | 5 | 27 s |
| Budget constrained | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 12:19 | yes | 15 | 19 s |
| Budget constrained | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 15:58 | yes | 23 | 455 s |
| Budget constrained | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 12:34 | yes | 5 | 20 s |
| Budget constrained | GPT-6 Luna | gpt-6-luna | 2026-11-01 15:20 | yes | 3 | 28 s |
| Budget constrained | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 10:10 | yes | 14 | 20 s |
| Scale constrained | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 13:17 | no | 0 | 5 s |
| Scale constrained | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 16:34 | no | 0 | 6 s |
| Scale constrained | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 15:34 | no | 0 | 14 s |
| Scale constrained | Perplexity Sonar | sonar | 2026-11-01 15:35 | yes | 10 | 9 s |
| Scale constrained | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 14:02 | yes | 5 | 14 s |
| Scale constrained | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 14:46 | no | 0 | 7 s |
| Scale constrained | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 14:10 | yes | 25 | 40 s |
| Scale constrained | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 12:46 | yes | 5 | 4 s |
| Scale constrained | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 11:11 | yes | 14 | 47 s |
| Scale constrained | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 13:56 | yes | 18 | 29 s |
| Scale constrained | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 09:38 | yes | 14 | 104 s |
| Scale constrained | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 16:42 | no | 0 | 76 s |
| Scale constrained | GPT-6 Luna | gpt-6-luna | 2026-11-01 13:49 | yes | 4 | 17 s |
| Scale constrained | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 17:06 | no | 0 | 4 s |
| Negative framing | Claude Haiku 4.5 | claude-haiku-4-5-20251001 | 2026-11-01 11:26 | yes | 17 | 10 s |
| Negative framing | GPT-5.4 mini | gpt-5.4-mini-2026-03-17 | 2026-11-01 15:49 | yes | 5 | 6 s |
| Negative framing | Gemini 3.5 Flash | gemini-3.6-flash (asked for gemini-3.5-flash; the API answered as this version) | 2026-11-01 16:08 | no | 0 | 14 s |
| Negative framing | Perplexity Sonar | sonar | 2026-11-01 11:27 | yes | 10 | 4 s |
| Negative framing | Grok 4.20 | spacexai/grok-4.20-non-reasoning via xai | 2026-11-01 15:15 | yes | 5 | 13 s |
| Negative framing | Mistral Small | mistral/mistral-small via mistral | 2026-11-01 12:10 | yes | 5 | 4 s |
| Negative framing | DeepSeek V4 Flash | deepseek/deepseek-v4-flash via deepinfra | 2026-11-01 12:59 | yes | 23 | 36 s |
| Negative framing | Llama 4 Maverick | meta/llama-4-maverick via bedrock | 2026-11-01 12:33 | yes | 5 | 4 s |
| Negative framing | Qwen 3.7 Flash | alibaba/qwen3.7-flash via alibaba | 2026-11-01 11:19 | yes | 5 | 23 s |
| Negative framing | Kimi K2 | moonshotai/kimi-k2 via novita | 2026-11-01 12:31 | yes | 24 | 51 s |
| Negative framing | GLM 4.7 FlashX | zai/glm-4.7-flashx via zai | 2026-11-01 13:09 | yes | 23 | 127 s |
| Negative framing | MiniMax M2.5 | minimax/minimax-m2.5 via minimax | 2026-11-01 12:47 | yes | 10 | 27 s |
| Negative framing | GPT-6 Luna | gpt-6-luna | 2026-11-01 13:12 | yes | 4 | 15 s |
| Negative framing | Muse Glimmer 30B | meta/muse-glimmer-30b via togetherai | 2026-11-01 09:51 | yes | 25 | 31 s |
Normalization in this category
Every judgment call made between the raw labels and the numbers above, listed so it is visible and reversible.
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Category-scoped readings
Experian read as Experian Address Validation
Google read as Google Maps
Google Address Validation read as Google Address Validation API
Google's Address Validation API read as Google Address Validation API
Melissa read as Melissa Global Address Verification
Melissa (Global Address Verification) read as Melissa Global Address Verification
Melissa (Melissa Data) read as Melissa Global Address Verification
Melissa Data read as Melissa Global Address Verification
PostGrid read as PostGrid Address Verification
USPS API read as USPS Address Validation API
USPS Addresses API read as USPS Address Validation API
Unresolved, counted raw
AWS Location Service – Address Validation
Address Agent API
AiPrise
EasyPost Address Validation
EasyPost Address Verification API
Etherscan
Experian Pandora / EDQ
Google Maps Geocoding / Google Address Validation API
Google Maps Platform
Google Maps Platform (Address Validation & Places APIs)
Google Maps Platform (Places Autocomplete & Geocoding API)
Incognia
Lob Address Verification API
Nominatim (OpenStreetMap)
OpenCage Geocoder
Positionstack
Royal Mail
Spaw
Twilio
USPS Web Tools APIs
USPS directly
libpostal
Discontinued, still offered
No shut-down product was recommended here.