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Claude 2 vs Kimi K2.6

Anthropic Claude 2 vs Moonshot AI Kimi K2.6 — side-by-side specs.

Anthropic
Claude 2
Moonshot AI
Kimi K2.6
Overview
CompanyAnthropicMoonshot AI
Release dateJul 11 2023Apr 21 2026
Model type
Open sourceNoNo
Specifications
Parameters
Context window
Benchmarks
Science reasoning
GPQA Diamond
Software engineering
SWE-Bench Verified
Multimodal understanding
MMMU
Timeline
Release gapClaude 2 shipped 1015 days before Kimi K2.6

Which is better: Claude 2 or Kimi K2.6?

Claude 2 and Kimi K2.6 do not have directly comparable benchmark scores published on GPQA Diamond, SWE-Bench Verified, or MMMU. Claude 2 shipped 1015 days before Kimi K2.6, so benchmark comparisons should account for the intervening progress.

Published specifications for these two models are limited — see each model page for the latest details.

Direct benchmark comparisons are unavailable — at least one of these models has not published scores on GPQA Diamond, SWE-Bench Verified, or MMMU.

Frequently asked questions

When was Claude 2 released?
Claude 2 was released by Anthropic on Jul 11 2023.
When was Kimi K2.6 released?
Kimi K2.6 was released by Moonshot AI on Apr 21 2026.

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