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. | 100k | 2M |
| These models have no shared benchmark scores. | ||
HumanEvalFunction synthesis — 164 small Python problems: the AI is given a function's description and has to write the working function. This was the coding benchmark of the GPT-3.5 and GPT-4 era, before the field moved to fixing real bugs in real repositories. Higher is better. | 58.7% | — |
GSM8KGrade-school math — Grade-school maths word problems that take a few steps of arithmetic to work through. It separated the models of 2022 and 2023 sharply, then saturated. One caveat on the historical numbers: OpenAI included part of the GSM8K training set in GPT-4's pre-training mix, so GPT-4's score is not a clean few-shot result. Higher is better. | 86.7% | — |
| Overview | ||
| Company | Anthropic | SpaceXSI |
| Release date | Aug 9 2023 | Sep 19 2025 |
| Access | Closed | Closed |
| Model details | View model | View model |
Other comparisons
Claude Instant 1.2vsGPT-6.1 SolGrok 4 FastvsGPT-6.1 SolClaude Instant 1.2vsGemini 4 ArgonGrok 4 FastvsGemini 4 ArgonClaude Instant 1.2vsMuse Spark OpenGrok 4 FastvsMuse Spark OpenClaude Instant 1.2vsDeepSeek-V4.1-Flash-1017Grok 4 FastvsDeepSeek-V4.1-Flash-1017Claude Instant 1.2vsMistral Large 4Grok 4 FastvsMistral Large 4Claude Instant 1.2vsKimi K3Grok 4 FastvsKimi K3Frequently asked questions
Claude Instant 1.2 and Grok 4 Fast don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Instant 1.2 shipped 772 days before Grok 4 Fast, so benchmark comparisons should account for the intervening progress.
Context windows are 100k (Claude Instant 1.2) vs 2M (Grok 4 Fast).
Direct benchmark comparisons are unavailable — Claude Instant 1.2 and Grok 4 Fast don't publish scores on any of the same benchmarks.