Compare AI models
| Specifications | ||
Context windowHow much information the model can work with in one request, measured in tokens — pieces of words or other data. This includes your question, attachments, conversation and reply. Limits can vary by model variant and provider. | 1M | 400k |
| These models have no shared benchmark scores. | ||
BullshitBench v2Nonsense detection — Given a confidently-worded but nonsensical prompt, does the AI spot that it makes no sense and push back — instead of playing along and inventing an answer? The score is how often it clearly called out the nonsense. Higher is better. | — | 32% |
SWE-Bench VerifiedCoding — Real coding tasks pulled from open-source projects — the AI has to find and fix actual bugs. A human-checked version of the original SWE-Bench. Higher is better. | 12.5% | — |
LiveCodeBenchCompetitive coding — Coding problems published so recently the AI can't have seen them in training — a contamination-free test of raw programming skill. Higher is better. | 28.9% | — |
GPQA DiamondScience — Graduate-level science questions in biology, physics, and chemistry — hard enough that subject-matter PhDs score around 65%. Higher is better. | 51.5% | — |
SimpleQAKnowledge — accuracy on short, fact-seeking questions in the original SimpleQA set | 21.7% | — |
MMLU-ProKnowledge — accuracy on the ten-option MMLU-Pro benchmark | 71.6% | — |
MMMUMultimodal — Tests the AI on understanding images and text together across many college subjects. Higher is better. | 68% | — |
| Overview | ||
| Company | OpenAI | |
| Release date | Feb 5 2025 | Nov 13 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
Gemini 2.0 Flash-LitevsClaude Fable 5.2GPT-5.1-CodexvsClaude Fable 5.2Gemini 2.0 Flash-LitevsMuse EmberGPT-5.1-CodexvsMuse EmberGemini 2.0 Flash-LitevsGrok 4.7GPT-5.1-CodexvsGrok 4.7Gemini 2.0 Flash-LitevsDeepSeek-V4.1-Flash-1017GPT-5.1-CodexvsDeepSeek-V4.1-Flash-1017Gemini 2.0 Flash-LitevsMistral Large 4GPT-5.1-CodexvsMistral Large 4Gemini 2.0 Flash-LitevsKimi K3.1 ProGPT-5.1-CodexvsKimi K3.1 ProFrequently asked questions
Gemini 2.0 Flash-Lite and GPT-5.1-Codex don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Gemini 2.0 Flash-Lite shipped 281 days before GPT-5.1-Codex, so benchmark comparisons should account for the intervening progress.
Context windows are 1M (Gemini 2.0 Flash-Lite) vs 400k (GPT-5.1-Codex).
Direct benchmark comparisons are unavailable — Gemini 2.0 Flash-Lite and GPT-5.1-Codex don't publish scores on any of the same benchmarks.