Claude 2.1vsKimi K2.7 Code
Claude 2.1 | Kimi K2.7 Code | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | — | 1T |
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. | 200k | 256k |
| API pricingUSD per 1M tokens · lower wins | ||
Input priceWhat you pay for everything you send the model — your question, plus any documents or earlier conversation you include with it. | — | $0.95 |
Output priceWhat you pay for the text the model writes back. It is normally the dearer half: producing an answer costs more than reading one. | — | $4.00 |
Cached input priceA reduced rate for text you send over and over. If every request starts with the same instructions or the same document, the provider keeps a copy ready and charges less to read it again. | — | $0.19 |
| BenchmarksPublished by one model only | ||
CursorBench v3.2Agentic coding — Cursor's own test of harder, real-world coding tasks inside a code editor, on the refreshed v3.2 task set. Scores aren't comparable with v3.1. Higher is better. | — | 49.7% |
DeepSWE 1.1Agentic coding — Artificial Analysis' independent test of deep, agentic software-engineering work — the AI has to plan and carry out substantial coding tasks end to end. (Version 1.1 of the test.) Higher is better. | — | 31% |
Next.js EvalsNext.js coding — Vercel's open eval of how well AI coding agents build and migrate real Next.js apps — measured as the share of tasks the agent completes successfully. Higher is better. | — | 75% |
Arena Elo (Code)Community preference (code) — Like the text arena, but people vote on which AI writes better code. The votes become a chess-style Elo rating on arena.ai. Higher is better. | — | 1469 |
| Overview | ||
| Company | Anthropic | Moonshot AI |
| Release date | Nov 21 2023 | Jun 12 2026 |
| Access | Proprietary | Open Weight |
Frequently asked questions
Claude 2.1 and Kimi K2.7 Code don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Only Kimi K2.7 Code has a verified first-party API price: $0.95 per million input tokens and $4.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude 2.1. Claude 2.1 shipped 934 days before Kimi K2.7 Code, so benchmark comparisons should account for the intervening progress.
Context windows are 200k (Claude 2.1) vs 256k (Kimi K2.7 Code). Claude 2.1 is proprietary, while Kimi K2.7 Code is open weight.
Direct benchmark comparisons are unavailable — Claude 2.1 and Kimi K2.7 Code don't publish scores on any of the same benchmarks.
Claude 2.1 was released by Anthropic on Nov 21 2023.
Kimi K2.7 Code was released by Moonshot AI on Jun 12 2026.
Only Kimi K2.7 Code has a verified first-party API price: $0.95 per million input tokens and $4.00 per million output tokens. No pay-as-you-go API rate is tracked for Claude 2.1. Rates are pay-as-you-go API prices verified on August 18, 2026.
Claude 2.1 has a 200k context window; Kimi K2.7 Code has 256k.
Claude 2.1 is a proprietary model released by Anthropic. Kimi K2.7 Code is an open weight model released by Moonshot AI.