Claude Instant 1.2vsKimi K2.7 Code
Claude Instant 1.2 | Kimi K2.7 Code | |
|---|---|---|
| Specifications | ||
Parameters | — | 1T |
Context window | 100k | 256k |
| Benchmarks | ||
Agentic coding CursorBench v3.2Cursor'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% |
Agentic coding DeepSWE 1.1Artificial 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 coding Next.js EvalsVercel'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% |
Function synthesis HumanEval164 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% | — |
Grade-school math GSM8KGrade-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% | — |
Community preference (code) Arena Elo (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 | Aug 9 2023 | Jun 12 2026 |
| Access | Proprietary | Open Weight |
Which is better: Claude Instant 1.2 or Kimi K2.7 Code?
Claude Instant 1.2 and Kimi K2.7 Code don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Claude Instant 1.2 shipped 1038 days before Kimi K2.7 Code, so benchmark comparisons should account for the intervening progress.
Context windows are 100k (Claude Instant 1.2) vs 256k (Kimi K2.7 Code). Claude Instant 1.2 is proprietary, while Kimi K2.7 Code is open weight.
Direct benchmark comparisons are unavailable — Claude Instant 1.2 and Kimi K2.7 Code don't publish scores on any of the same benchmarks.
Frequently asked questions
Claude Instant 1.2 was released by Anthropic on Aug 9 2023.
Kimi K2.7 Code was released by Moonshot AI on Jun 12 2026.
Claude Instant 1.2 has a 100k context window; Kimi K2.7 Code has 256k.
Claude Instant 1.2 is a proprietary model released by Anthropic. Kimi K2.7 Code is an open weight model released by Moonshot AI.