Kimi K2.5 review, price and benchmarks (2026)

public free open-weights api in Generator long-context

Provider

Statuspublic

AA Intelligence Index35.4 (July 16, 2026 snapshot)

Releasedn/a

Context windown/a

Modalitiesn/a

API price $/1M (in / out)n/a

Speedn/a

AccessOpen weights · API hosts

In one line

The previous Kimi - still a solid open all-rounder with excellent long-context behavior.

Coding72

Reasoning66

Writing60

Agents & tools68

Category scores (0-100) are WhichAI blended ratings: public category leaderboards plus editorial judgment. Guidance, not official measurements.

Alternatives worth a look

Claude Sonnet 4.6 (Anthropic) · AA 35.9Claude Pro · API
Gemini 3.5 Flash-Lite (Google) · AA 36.5API $0.30/$2.50 per 1M tokens
Qwen3.6-27B (Alibaba) · AA 37Open weights (Apache 2.0) · runs on a good desktop

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Artificial Analysis Intelligence Index, 2026 rebased scale (top models ≈ 55–60). Snapshot: July 24, 2026 (BenchLM mirror), retrieved July 26, 2026. Context, price and release data come from vendor pages and public pricing mirrors (retrieved July 19, 2026). Missing values are not published or not yet verified - shown as -. Sources are linked inside the app (Model guide and About > Methodology).