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Claude Fable 5.1vsQwen3.6 27B

Claude Fable 5.1 leads 2 of 2 shared benchmarks. Claude Fable 5.1 has the larger context window (1M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
2 – 0
Claude Fable 5.1 leads
Cheaper per token
list price, input + output
Larger context
Claude Fable 5.1
1M tokens
Provider uptime (30d)
100% · —
Anthropic · Qwen
Claude Fable 5.1
Anthropic · released 2026-09-01
textvision
Context
1M
Max out
128K
Input /1M
$10
Output /1M
$50
Cached /1M
$0.25
Scores
8 · 5 core
Qwen3.6 27B
Qwen · released 2026-04-21
textvision
Context
262K
Max out
Input /1M
Output /1M
Cached /1M
Scores
6 · 5 core
Quality

Benchmark matrix

BenchmarkClaude Fable 5.1Qwen3.6 27BΔEdge
Reported by both · 2
FrontierMath Tiers 1-3 v2 (Epoch AI run)90.2% epoch35.1% epoch+55.1 ptClaude Fable 5.1
OTIS Mock AIME 2024-2025 (Epoch AI run)100% epoch91.1% epoch+8.9 ptClaude Fable 5.1
Only Claude Fable 5.1 reports · 6
Humanity's Last Exam (no tools)60.9% not reported
CursorBench 3.2.073.4% not reported
FrontierMath Tier 4 v2 (Epoch AI run)87.8% epochnot reported
GDPval-AA v21853 not reported
SimpleQA Verified70.8% epochnot reported
Terminal-Bench Science 0.152.6% not reported
Only Qwen3.6 27B reports · 3
SWE-bench Verifiednot reported77.2%
GPQA Diamondnot reported87.8%
MMLU-Pronot reported86.2%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Claude Fable 5.1 minus Qwen3.6 27B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecClaude Fable 5.1Qwen3.6 27BEdge
Context window1M tokens262K tokensClaude Fable 5.1
Max output128K tokens
Input price / 1M$10
Output price / 1M$50
Cached input / 1M$0.25
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$60
Modalitiestext · visiontext · visionTie
Released2026-09-012026-04-21
Cited benchmark scores86
Reliability

Provider status

All providers
More matchups

Claude Fable 5.1 vs …

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Public benchmarks are a starting point. Run Claude Fable 5.1 and Qwen3.6 27B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.