whatmodel.sh / ChatGPT-4o (2025-03-26)
ChatGPT-4o (2025-03-26)
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ChatGPT-4o (2025-03-26) is a closed-weights language model from OpenAI, released March 2025.
Catalogue identity notes
Comparison-only. Arena entry 'chatgpt-4o-latest-20250326' (text, vision). LMArena's leaderboard table (arena-leaderboard space @6f2eeeb) labels 'chatgpt-4o-latest-20250326' as 'ChatGPT-4o-latest (2025-03-26)' (OpenAI, Proprietary), linking https://x.com/OpenAI/status/1905331956856050135. Released 2025-03: OpenAI model release notes: 'Improvements to GPT-4o (March 27, 2025) ... available in ChatGPT and in the API as the newest snapshot of chatgpt-4o-latest'. The Arena entry pins the 2025-03-26 state of the chatgpt-4o-latest alias. OpenAI deprecations page: chatgpt-4o-latest removed 2026-02-17.
$ how it compares
The LLMs ranked either side of ChatGPT-4o (2025-03-26), out of 828 with a score, then more from OpenAI.
| # | model | score | where | ||
|---|---|---|---|---|---|
| 164 |  EXAONE 4.5 33B | 65±2 | local | ||
| 165 |  Qwen3.5 Flash | 65±1 | api $0.17/M | ||
| 166 | ChatGPT-4o (2025-03-26) | 65±2 | comparison only | ||
| 167 |  INTELLECT-3 | 65±1 | local | ||
| 168 |  Nemotron 3 Super 120B-A12B | 65±1 | api $0.28/M +local | ||
| more from OpenAI | |||||
| 1 | GPT-6 Astra | 87±1 | api $20.00/M | ||
| 3 | GPT-6.1 Sol | 85±1 | api $4.00/M | ||
| 7 | GPT-6 Sol | 83±1 | api $4.00/M | ||
$ what it's good at
coding▁▁▁▃▅▇█▇▅▄▃▁ #179 of 524 * · 62% of its score · 1 test
Beats Gemini 2.5 Pro, Gemini 3.1 Flash-Lite, Qwen3-Coder-Next (80B-A3B) here, though they rank higher overall. Trails QwQ-32B-Preview, Ministral 3 8B Reasoning 2512, Phi-4-reasoning 14B here, though they rank lower overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Aider polyglot (225 exercises, two attempts) | 45.3% ✎ | ▂·▂▃▅▂▃█▆▄▂▂ beats 23/49 | 62% |
chat & writing▁▁▁▃▅▄▆█▇▇▇▃ #68 of 463 * · 22% of its score · 1 test
Beats GPT-5.2, Qwen3.8 27B, LongCat 2.0 (1.6T-A48B) here, though they rank higher overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| LMArena (text) | 1442.9 ✎ | ▁▁▁▂▃▃▃▆▆▇█▃ beats 305/379 | 22% |
vision & documents▁▁▃▃▂▃▅▄▇▇█▃ #63 of 182 * · 15% of its score · 1 test
Beats DeepSeek V4 Flash Vision (Exp), GPT-5, MiniMax-M3 here, though they rank higher overall. Trails Gemma 4 26B-A4B here, though they rank lower overall.
| test | result | vs the others in its run | counts |
|---|---|---|---|
| Arena vision (style controlled) | 1238.8 ✎ | ▁▁▂▂▂▂▄▅▅▆██ beats 93/145 | 15% |
$ where to run it
No verified API or download recorded yet · add one
$ how the score was worked out · Aider polyglot benchmark runs 62%, LMArena leaderboard dataset 37%
Each result implies a score on its own, after adjusting for how hard its test is and who ran it. The score is their weighted average, with a small pull toward the middle for thinly tested models. Each test's weight is its counts column above; here it's added up by who ran the tests. How it works
| source | results | share of the score |
|---|---|---|
 Aider polyglot benchmark runs | 1 | 62% |
 LMArena leaderboard dataset | 2 | 37% |
| prior · pull toward the middle | 1% | |
| weighted average | = 64.8 |
$ improve this page
Use a short GitHub form or edit the data through a pull request. Every number needs a source; here's which ones we can use.
data updated · sources and licences · json