Claude Fable 5.1 vs Muse Wonder
Wins 3 of 5 areas
Coding · Reasoning · Long documents
Wins 0 of 5 areas
—
Claude Fable 5.1 is the stronger all-rounder.Muse Wonder is cheaper.
Scores updated · 15 tests both models report · How we compare
Where each one wins
Tests won in each of the five areas where both have results. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- ReasoningHard problems that need careful thinking20Claude Fable 5.12 of 2 tests
- CodingWriting and fixing software10Claude Fable 5.11 of 1 test
- Long documentsFinding answers in very long texts10Claude Fable 5.11 of 1 test
- AgentsCarrying out multi-step tasks on its own00Even0 each · 2 ties
- FactsGetting facts right instead of making them up11Even1 each
Coding and long documents rest on a single test each.
What it costs
Prices per million tokens, roughly 750,000 words. The bars show the cost of a million tokens read plus a million written.
Muse Wonder costs 60% less for the same work.
The biggest differences
The tests each model wins by the widest margin, up to three each. Scores are out of 100.
Where Claude Fable 5.1 pulls ahead
- Answers hard knowledge questions correctlyAA-Omniscience · Accuracy+26.1points ahead
- Very hard expert questions across many subjectsHumanity's Last Exam+9points ahead
- Reasons across sets of long documentsAA-LCR+4.6points ahead
Where Muse Wonder pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+46.1points ahead
Every test, side by side
All 15 tests both models report. The winning score is in its model's colour; marks a score checked independently.
ReasoningClaude Fable 5.1
- Humanity's Last ExamClaude Fable 5.1 by 959.150.1+9
- CritPtClaude Fable 5.1 by 1.429.728.3+1.4
FactsEven
- AA-Omniscience · Non-hallucinationMuse Wonder by 46.127.473.5+46.1
- AA-Omniscience · AccuracyClaude Fable 5.1 by 26.167.241.1+26.1
Other results7 tests, not counted
Tests outside the eight areas. They are not counted above: several are summary scores built from other tests, or the same test under another name.
- GDP (Surge AI)Claude Fable 5.1 by 54.385.130.8+54.3
- Program BenchClaude Fable 5.1 by 37.687.650+37.6
- AA-OmniscienceClaude Fable 5.1 by 1843.525.5+18
- DeepSWE 1.1Muse Wonder by 11.467.478.8+11.4
- OSWorld 2.1 partialClaude Fable 5.1 by 8.180.772.6+8.1
- HealthBench ProfessionalClaude Fable 5.1 by 1.662.160.5+1.6
- AA IntelligenceClaude Fable 5.1 by 153.452.4+1
Questions people ask
Which is better, Claude Fable 5.1 or Muse Wonder?
Claude Fable 5.1 wins three of the five areas where both have results: coding, reasoning and long documents. Muse Wonder wins none, but costs 60% less. They are level on agents and facts.
Which is better for coding?
Claude Fable 5.1. It wins the one coding test both models report.
Which is cheaper?
Claude Fable 5.1 costs $10.00 per million input tokens and $50.00 per million output tokens; Muse Wonder costs $4.00 and $20.00. That makes Muse Wonder about 60% cheaper for the same work.
How do you compare the two?
We use the 15 benchmark tests both models have published scores on. The verdict counts the 8 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 7 are listed but not counted, because several are summary scores or repeat a test. Each score is the one shown on the model's own page.