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Claude Fable 5 vs Kimi K3

Both are SOTA right now. Each row below is one board’s call on the two, and the marked figure is the one that board places higher. No row is added to another, so there is no overall winner: the boards measure different things, and where they split, that is the finding.

Board Claude Fable 5 Kimi K3
Artificial Analysis LLM Leaderboard Artificial Analysis Intelligence Index 49.6 No. 8 of 372 43.6 No. 18 of 372
Arena — Agent Overall 0.082 No. 8 of 49 0.042 No. 14 of 49
Artificial Analysis Coding Agents Artificial Analysis Coding Agent Index — 0.519 No. 15 of 22
HarnessTax — SWE-bench Lite SWE-bench Lite 97.8% No. 1 of 7 76.7% No. 4 of 7
HarnessTax — Terminal-Bench 2.0 Terminal-Bench 2.0 75.6% No. 3 of 7 73.3% No. 4 of 7
Arena — Code Overall 1625 No. 18 of 109 1658 No. 13 of 109
Arena — Text Overall (style control) 1504 No. 3 of 306 1488 No. 16 of 306
Arena — Vision Overall (style control) 1309 No. 1 of 128 —

Each rank is the board’s own: the rank it publishes, or its place in its own order where it publishes none. The bar is how much of that board the model is ahead of. Scores from different boards cannot be compared.

At a glance

Developer Anthropic Kimi
Weights closed open
Released 2026-06-092026-07-16
Price Blended Price, USD per 1M tokens (3:1 input:output) $20.00$6.00
Value: where it sits on the kill line SOTA SOTA

Claude Fable 5 →Kimi K3 → How the kill line is drawn →

Claude Fable 5 against the other SOTA models

Kimi K3 against the other SOTA models