PostgreSQL vs Redis
Zero of fourteen models named PostgreSQL first on the direct prompt; zero named Redis. PostgreSQL was named by eight of the fourteen models and Redis by fourteen and PostgreSQL carries 13 labels and Redis 56, so the shares are not directly comparable.
Named in three categories this edition.
Named in two categories this edition.
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; rank is within the category; every quote names the model and the prompt it came from. Both figures come from the nosql databases page.
By framing
PostgreSQLFirst choices, of fourteen modelsRedis
Across every category in the November 2026 Edition, PostgreSQL and Redis were named in the same answer thirty-four times, of the 99 answers naming PostgreSQL and the 152 naming Redis. In those answers Redis took the first choice one time and PostgreSQL six.
Every model, every framing
| Model | Direct | Paraphrase | Comparative | Budget-constrained | Scale-constrained | Negative |
|---|---|---|---|---|---|---|
| Claude Haiku 4.5 | | | | |||
| GPT-5.4 mini | | | ||||
| Gemini 3.5 Flash | | | | | | |
| Perplexity Sonar | | | | |||
| Grok 4.20 | | | | | | |
| Mistral Small | ||||||
| DeepSeek V4 Flash | | | | | ||
| Llama 4 Maverick | | |||||
| Qwen 3.7 Flash | | | | | ||
| Kimi K2 | | | | | | |
| GLM 4.7 FlashX | | | ||||
| MiniMax M2.5 | | | | |||
| GPT-6 Luna | | | ||||
| Muse Glimmer 30B | | |
PostgreSQL Redis first choice named as an alternative argued againstblank: not namedEach cell is one answer, PostgreSQL on the left and Redis on the right.The direct prompt
Neither was the first choice, one was named
4 of 14 modelsThe answer put something else first and named one of the two as an alternative.Neither was named
10 of 14 modelsThe answer made no first choice from these two in this category.Bold names in an answer are the products the judge labeled a first choice; a model naming several gives each of them that label. The full answer text for every row is in the record.
By buyer segment
PostgreSQL2%#4 of 12Redis0%#5 of 12PostgreSQL2%#– of 14Redis2%#8 of 14What the models said about PostgreSQL
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Three of three in this category shown.
“Use PostgreSQL + JSONB if you're early-stage and want maximum flexibility with minimal cost.” GPT-5.4 mini · budget prompt · first choice
“The Best "All-in-One" Alternative: PostgreSQL (with JSONB)” Gemini 3.5 Flash · budget prompt · first choice
“TL;DR: Default to Postgres. Reach for NoSQL only when you can state the specific access pattern or scale wall that forces it.” Muse Glimmer 30B · negative prompt · alternative
What the models said about Redis
Every negative label with a quote, up to three, then the highest-weighted positives, up to three. Six of eight in this category shown.
“Avoid Redis as a sole data store for critical financial data.” MiniMax M2.5 · negative prompt · hard negative
“Redis as the only copy of important data — Don't assume data is durable just because it's in a database.” GPT-6 Luna · negative prompt · soft negative
“Redis is rarely used as a *primary* database for storage due to cost constraints and lack of durability” Qwen 3.7 Flash · direct prompt · soft negative
“Redis for a key-value database” GLM 4.7 FlashX · paraphrase prompt · first choice
“For caching, real-time, or session store: Redis (via ElastiCache or Redis Cloud) is almost always the right answer.” MiniMax M2.5 · scale prompt · alternative
“In-Memory / Fast Key-Value | Redis Enterprise, Dragonfly | Caching, session stores, real-time leaderboards.” Gemini 3.5 Flash · scale prompt · alternative
Comparisons are drawn for the top eight products in each category, each against each. The output is the models' output; nothing here is a recommendation by the index.