OpenAI
OpenAI's most powerful reasoning model. Achieves state-of-the-art results on complex math, science, and code tasks through extended chain-of-thought.
Achieves state-of-the-art results on complex math, science, and code tasks through extended chain-of-thought.
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Quality Score
1340
Arena ELO
Undisclosed
Parameters
200K
Context
Use this section to answer one simple question first: how much outside evidence do we have that this model performs well? Structured benchmark scores appear first, then official provider evidence, then live arena signal.
This model has normalized benchmark rows, so scores here are directly comparable across benchmark sources.
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Apr 2025
Released
These are recent benchmark or leaderboard claims from official provider sources. They are useful for freshness and context, but they are not treated the same as normalized independent benchmark rows.
o3-mini-2025-01-31 - Arena-Hard-Auto
Arena-Hard-Auto official Gemini-2.5 judged score 50.0 with CI 0/0
View sourceO3-Mini-2025-01-31 (Low) - LiveCodeBench
LiveCodeBench pass@1 70.6 across 1055 tasks
View sourceWe’re introducing GeneBench-Pro, a research-level benchmark for a harder kind of AI progress: how well agents can navigate messy biological data, choose the right analysis path, and make judgment call
We’re introducing GeneBench-Pro, a research-level benchmark for a harder kind of AI progress: how well agents can navigate messy biological data, choose the right analysis path, and make judgment calls that real computational research depends on. https://t.co/AsilnnSxnE
View sourceIntroducing GPT‑5 for developers
Introducing GPT‑5 for developers | OpenAI Skip to main content Research Products Business Developers Company Foundation (opens in a new window) Log in Try ChatGPT (opens in a new window) Research Products Business Developers Company Foundation (opens in a new window) Try ChatGPT (opens in a new window) Login OpenAI August 7, 2025 Product Introducing GPT‑5 for developers The best model for coding and agentic tasks. Loading… Share Introduction Introduction Coding Frontend engin
View sourceo3 Pro Benchmark Update
Quality: 93/100 | Speed: 15/100 | Price: $40/M tokens | MMLU: 92%
View sourceo3 Pro Benchmark Update
Quality: 93/100 | Speed: 15/100 | Price: $40/M tokens | MMLU: 92%
View source1340
ELO Score
1337 - 1345
95% Confidence
+/-4 points
19.4K
Battles
Jul 5, 2026
Last Updated
1218
ELO Score
1211 - 1225
95% Confidence
+/-7 points
46.7K
Battles
May 18, 2026
Last Updated