Claude Fable 5 vs Muse Spark 1.1
Wins 8 of 8 areas
Coding · Agents · Reasoning · Facts · Images and charts · Math · Long documents · Following instructions
Wins 0 of 8 areas
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Claude Fable 5 is the stronger all-rounder.Muse Spark 1.1 is cheaper.
Scores updated · 36 tests both models report · How we compare
Where each one wins
Tests won in each of the eight areas we test. Each piece is one test, so a longer bar means more evidence; grey means the two scored within a point of each other.
- CodingWriting and fixing software60Claude Fable 56 of 6 tests
- ReasoningHard problems that need careful thinking40Claude Fable 54 of 4 tests
- AgentsCarrying out multi-step tasks on its own41Claude Fable 54 of 5 tests
- FactsGetting facts right instead of making them up21Claude Fable 52 of 3 tests
- Images and chartsUnderstanding pictures, charts and video10Claude Fable 51 of 1 test
- MathCompetition and research-level math10Claude Fable 51 of 1 test
- Long documentsFinding answers in very long texts10Claude Fable 51 of 1 test
- Following instructionsDoing exactly what it is asked10Claude Fable 51 of 1 test
Images and charts, math, long documents and following instructions 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 Spark 1.1 costs 91% 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 pulls ahead
- Complex command-line tasks across many fieldsTerminal-Bench 4.0+36.3points ahead
- Real work tasks from 44 professionsGDPVal+19.9points ahead
- Long, multi-file coding tasks in real codebasesSWE-bench Pro+18.5points ahead
Where Muse Spark 1.1 pulls ahead
- Avoids making up answers it doesn't knowAA-Omniscience · Non-hallucination+13.6points ahead
- Multi-step tasks using many real software toolsMCP Atlas+3.4points ahead
Every test, side by side
All 36 tests both models report. The winning score is in its model's colour; marks a score checked independently.
CodingClaude Fable 5
- SWE-bench ProClaude Fable 5 by 18.58061.5+18.5
- LiveBench · CodingClaude Fable 5 by 8.88677.2+8.8
- LMArena · WebDevClaude Fable 5 by 82 rating points16241542+82 rating
- Terminal-Bench 2.1Claude Fable 5 by 6.784.677.9+6.7
- LiveBench · Agentic CodingClaude Fable 5 by 3.762.258.5+3.7
- SciCodeClaude Fable 5 by 2.26158.8+2.2
AgentsClaude Fable 5
- Terminal-Bench 4.0Claude Fable 5 by 36.342.46.1+36.3
- GDPValClaude Fable 5 by 19.955.635.7+19.9
- τ-Bench V3 · BankingClaude Fable 5 by 6.338.131.8+6.3
- OSWorld-VerifiedClaude Fable 5 by 4.28580.8+4.2
- MCP AtlasMuse Spark 1.1 by 3.484.788.1+3.4
ReasoningClaude Fable 5
- CritPtClaude Fable 5 by 13.528.615.1+13.5
- Humanity's Last ExamClaude Fable 5 by 9.355.546.2+9.3
- GPQA DiamondClaude Fable 5 by 2.892.689.8+2.8
- LiveBench · ReasoningClaude Fable 5 by 289.787.7+2
FactsClaude Fable 5
- AA-Omniscience · Non-hallucinationMuse Spark 1.1 by 13.636.450+13.6
- AA-Omniscience · AccuracyClaude Fable 5 by 13.365.352+13.3
- SimpleQA VerifiedClaude Fable 5 by 12.970.757.8+12.9
Images and chartsClaude Fable 5
- LMArena · VisionClaude Fable 5 by 31 rating points13251294+31 rating
Following instructionsClaude Fable 5
- LiveBench · Instruction FollowingClaude Fable 5 by 6.275.869.6+6.2
Other results14 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.
- GDPval-AA v2 EloClaude Fable 5 by 342 rating points17231381+342 rating
- AA Agentic IndexClaude Fable 5 by 23.55127.5+23.5
- DeepSWE 1.1Claude Fable 5 by 177053+17
- livebench_languageClaude Fable 5 by 16.490.774.3+16.4
- AA IntelligenceClaude Fable 5 by 15.949.633.7+15.9
- AA-OmniscienceClaude Fable 5 by 15.243.328.1+15.2
- ToolathlonMuse Spark 1.1 by 13.961.775.6+13.9
- DeepSearchQA (F1)Claude Fable 5 by 9.394.284.9+9.3
- livebench_data_analysisClaude Fable 5 by 7.980.572.5+7.9
- HealthBench ProfessionalClaude Fable 5 by 6.76659.3+6.7
- Artificial Analysis Coding IndexClaude Fable 5 by 5.276.571.3+5.2
- JobBenchClaude Fable 5 by 2.757.454.7+2.7
- Toolathlon VerifiedClaude Fable 5 by 2.377.975.6+2.3
- Finance Agent v2tie56.357.2tie
Questions people ask
Which is better, Claude Fable 5 or Muse Spark 1.1?
Claude Fable 5 wins all eight areas we test: coding, agents, reasoning, facts, images and charts, math, long documents and following instructions. Muse Spark 1.1 wins none, but costs 91% less.
Which is better for coding?
Claude Fable 5. It wins 6 of the 6 coding tests both models report; Muse Spark 1.1 wins none.
Which is cheaper?
Claude Fable 5 costs $10.00 per million input tokens and $50.00 per million output tokens; Muse Spark 1.1 costs $1.25 and $4.25. That makes Muse Spark 1.1 about 91% cheaper for the same work.
How do you compare the two?
We use the 36 benchmark tests both models have published scores on. The verdict counts the 22 tests in the eight capability areas, and a gap under one point (ten on rating-style scales) counts as a tie. The other 14 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.