Claude Instant 1.2vsKimi K1.5
Claude Instant 1.2 | Kimi K1.5 | |
|---|---|---|
| Specifications | ||
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 100k | 128k |
| BenchmarksPublished by one model only | ||
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 | Moonshot AI |
| Release date | Aug 9 2023 | Jan 20 2025 |
| Access | Proprietary | Proprietary |
Frequently asked questions
Claude Instant 1.2 and Kimi K1.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Instant 1.2 shipped 530 days before Kimi K1.5, so benchmark comparisons should account for the intervening progress.
Context windows are 100k (Claude Instant 1.2) vs 128k (Kimi K1.5).
Direct benchmark comparisons are unavailable — Claude Instant 1.2 and Kimi K1.5 don't publish scores on any of the same benchmarks.
Claude Instant 1.2 was released by Anthropic on Aug 9 2023.
Kimi K1.5 was released by Moonshot AI on Jan 20 2025.
Claude Instant 1.2 has a 100k context window; Kimi K1.5 has 128k.
Other comparisons
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