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Muse Spark 1.1 vs Claude Fable 5

At a glance

Meta's multimodal reasoning model built for agentic work and real-world coding.

1.0M ctx$1.25/$4.25 per M

Anthropic's Mythos-class flagship for ambitious, long-running professional work.

921M ctx$10.00/$50.00 per M#2/92
Demos
All demos

No shared demos for these models yet.

AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Cheaper90%
Capability
Capability—
Reasoning & Knowledge
Expert-Level52.2%Factual Recall—
Math
Competition Math—
Agentic
Terminal Tasks80.0%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI91.6
Reasoning & Knowledge
Expert-Level—Factual Recall68.3%
Math
Competition Math99.7%
Agentic
Terminal Tasks—
Specs
1.0M
Context
16K
Max output
Jul 2026
Released
1M
Context
128K
Max output
Jun 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input88%$1.25/M tokens
Output92%$4.25/M tokens
Cache read85%$0.15/M tokens
Web search75%$0.003/search
Live pricing, shown before you run
Input$10.00/M tokens
Output$50.00/M tokens
Cache read$1.00/M tokens
Cache write$12.50/M tokens
Web search$0.01/search
Chat with Muse Spark 1.1Go to model
Chat with Claude Fable 5Go to model
Frequently Asked Questions: Muse Spark 1.1 vs Claude Fable 5▼

Which is better, Muse Spark 1.1 or Claude Fable 5?

▼

Both Muse Spark 1.1 and Claude Fable 5 are capable AI models. The best choice depends on your specific use case: consider pricing, context window, speed, and which capabilities (vision, reasoning, audio) you need.

Which is cheaper, Muse Spark 1.1 or Claude Fable 5?

▼

Muse Spark 1.1 has a lower blended cost. Muse Spark 1.1: $1.25 input / $4.25 output. Claude Fable 5: $10.00 input / $50.00 output.

Which has a larger context window, Muse Spark 1.1 or Claude Fable 5?

▼

Muse Spark 1.1 has a larger context window: Muse Spark 1.1 supports 1M tokens vs Claude Fable 5 at 1M tokens.

Do both Muse Spark 1.1 and Claude Fable 5 support vision?

▼

Yes, both Muse Spark 1.1 and Claude Fable 5 support vision/image input.

What are the key differences between Muse Spark 1.1 and Claude Fable 5?

▼

Key differences: Muse Spark 1.1 is significantly cheaper. Compare full specs on this page.

Which model should I choose for my use case?

▼

If cost is your priority, choose the cheaper option. If you need the highest intelligence for complex tasks, pick the higher-scoring model. For long documents or codebases, choose the larger context window. You can try both Muse Spark 1.1 and Claude Fable 5 for free on idapt.app to see which performs better for your specific needs.

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