MITRE Caldera
MITRE Caldera is an open-source platform, released under the Apache license, that automates adversary emulation using real-world tactics, techniques and procedures · mitre.org ↗
Read the same way at every company size.
The standing depends on who is buying. Every model is asked the same questions for each company size.
Vanta is first at 20%.
Cymulate is first at 35%.
Cymulate is first at 27%.
Why models recommend it
“free and open-source BAS tools like MITRE Caldera and Prelude Operator offer powerful capabilities for simulating adversary behaviors without any licensing fees”Claude Haiku 4.5 · Budget-constrained question · first choice
“MITRE Caldera (or a combination with Atomic Red Team) is the best breach and attack simulation (BAS) option for a company with a limited budget.”Grok 4.20 · Budget-constrained question · first choice
“Start free: Deploy Atomic Red Team or MITRE Caldera to establish baseline testing”MiniMax M2.5 · Budget-constrained question · first choice
“I'd recommend starting with the free open-source tools (Atomic Red Team + MITRE Caldera)”GLM 4.7 FlashX · Budget-constrained question · first choice
What gives them pause
“Open-source alternatives (e.g., MITRE Caldera, Atomic Red Team) can supplement but usually lack the enterprise polish”Grok 4.20 · Scale-constrained question · warning
Also on the shortlist
The products named in the same answers as MITRE Caldera, over the 21 answers that named it, and how often each was the first choice instead.
| Product | Named together | Picked instead | |
|---|---|---|---|
| 17 | 2 | Compare → | |
| 17 | 2 | Compare → | |
| 15 | 3 | Compare → | |
| 14 | 1 | View → | |
| 12 | 1 | Compare → | |
| 10 | 1 | Compare → | |
| 10 | 0 | Compare → | |
| 7 | 0 | View → | |
| 7 | 0 | View → | |
| 5 | 1 | View → |
What the models named instead of MITRE Caldera →
A side-by-side page exists where both products are among a category's top eight.
How this is measured
Fourteen AI models from 12 labs are asked the same buying questions six ways, for three company sizes. Standings refresh every edition.
Gane sells AI visibility software. No company can pay to change a result.
Read the method →Sources returned with these answers
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. These counts come from 18 of the 21 answers that named MITRE Caldera and are not a share of its labels.
Domains cited
Seventy-eight of the seventy-eight domain citations in answers naming MITRE Caldera came from a third party's page.
Pages cited
Pages are listed as the models cited them.
By model
| Model | First choice | Alternative | Mention | Warning | Labels |
|---|---|---|---|---|---|
| Claude Haiku 4.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-5.4 mini | 0 | 0 | 0 | 0 | 0 |
| Gemini 3.5 Flash | 0 | 1 | 1 | 0 | 2 |
| Perplexity Sonar | 0 | 1 | 0 | 0 | 1 |
| Grok 4.20 | 1 | 0 | 0 | 1 | 2 |
| Mistral Small | 0 | 0 | 0 | 0 | 0 |
| DeepSeek V4 Flash | 0 | 1 | 0 | 0 | 1 |
| Llama 4 Maverick | 0 | 0 | 0 | 0 | 0 |
| Qwen 3.7 Flash | 0 | 0 | 0 | 0 | 0 |
| Kimi K2 | 1 | 0 | 0 | 0 | 1 |
| GLM 4.7 FlashX | 1 | 0 | 0 | 0 | 1 |
| MiniMax M2.5 | 1 | 0 | 0 | 0 | 1 |
| GPT-6 Luna | 0 | 0 | 0 | 0 | 0 |
| Muse Glimmer 30B | 0 | 1 | 0 | 0 | 1 |
What it publishes
| Kind | Pages | Last 90 days | 2025-10 to 2026-09 | Latest | Categories named |
|---|---|---|---|---|---|
| Blog | 64 | 1 | 2026-07-01 | ||
| Podcast or video | 45 | 0 | 2020-12-01 | ||
| Conference or event | 23 | 1 | 2026-09-01 | ||
| Glossary or explainer | 3 | 0 | 2021-04-01 | ||
| Webinar or virtual event | 2 | undated | |||
| Case study | 1 | 0 | 2021-05-20 | ||
| Report or ebook | 1 | undated | |||
| Template or tool | 1 | undated | |||
| News or press | 1 | 0 | 2020-10-01 |
Most recent
- 2026-09-01Summiting the pyramid 2026 conference or event
- 2026-07-01Attack flow 2026 blog
- 2026-05-01Secure ai v2 release blog
- 2026-04-01Fraud fighters unite with mitre f3 blog
- 2026-02-01Ambiguous techniques extension blog
- 2026-02-01Mitre atlas openclaw investigation blog
How it is countedHide how it is counted
Every page mitre.org exposes, subdomains included. Kind is read from the address and title. The last 90 days, the latest date and the twelve months count pages by when they were published, from the site's feeds, a date in the address, or the page's own publication date, read from up to a hundred of its most recently changed pages; a page that says only when it last changed is counted in its kind but not in when, so the recent counts are a floor, and a kind none of whose pages gives a publication date reads undated. An event counts as online when its address or title says so (webinar, on demand, virtual or online summit); a conference, summit, trade show, expo or roadshow that does not say so is counted as a conference or event, which on a vendor's site is mostly in person. Read September 29, 2026.