Claude Fable 5.1 vs Qwen3.8 Max (0902)

Verdict

Claude Fable 5.1 leads 4–0 across 5 shared benchmarks.

Claude Fable 5.1 4 · Qwen3.8 Max (0902) 0 · 1 tied · higher isn't always better — check the caveats below.

Per-benchmark head-to-head

Reported scores — protocols may differ. How we compare

Sort

Claude Fable 5.1Qwen3.8 Max (0902)

44.23
AChess Puzzles
36.87
87.8
AFrontierMath-Tier-4-v2-Private
34.15
90.18
AFrontierMath-Tiers-1-3-v2-Private
65.61
100
AOTIS Mock AIME 2024-2025
100
70.8
ASimpleQA Verified
47.3

Capabilities

Math

Math: Claude Fable 5.1 leads 1–0 across 2 shared math benchmarks (largest gap: FrontierMath-Tier-4-v2-Private, 87.8 vs 34.15 — protocols undisclosed).

4 unverified

A higher score does not always mean a better model. Each number is task performance under a disclosed harness. Of the 10 measurements across 5 shared benchmarks, 10 single-evaluator or undisclosed-protocol reports; 0% are independently reproduced. Check any benchmark's integrity grade before reading a win as decisive.

Frequently asked questions

Claude Fable 5.1 leads 4–0 across 5 shared benchmarks. Claude Fable 5.1 leads 4 benchmarks and Qwen3.8 Max (0902) leads 0, with 1 tied. Higher isn't always better — see the integrity caveats on each benchmark.

Claude Fable 5.1 and Qwen3.8 Max (0902) have 5 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.

Claude Fable 5.1 leads math 1–0.

Follow the record

These models

Same tier

Frequently asked questions

Claude Fable 5.1 and Qwen3.8 Max (0902) have 5 benchmarks in common in our data — those are the only rows where a direct, apples-to-apples comparison is drawn.

Claude Fable 5.1 leads math 1–0.