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Muse Spark 1.1 vs Claude Sonnet 4.5

At a glance
MetaMuse Spark 1.1

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

1.0M ctx$1.25/$4.25 per M
AnthropicClaude Sonnet 4.5

High-performance model for real-world agents and coding.

791M ctx$3.00/$15.00 per M#28/92
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
MetaMuse Spark 1.1
Reasoning
CodingInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:Provider·OpenRouter· as of 2026-07-16
Cheaper
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Expert-Level52.2%Factual Recall—
Math
Competition Math—Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks80.0%Novel Reasoning—
AnthropicClaude Sonnet 4.5
Reasoning
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI78.9
Reasoning & Knowledge
Graduate Science73.7%Expert-Level—Factual Recall13.0%
Math
Competition Math35.6%Research Math9.3%
Coding
Real-World Coding71.3%
Agentic
Terminal Tasks42.8%Novel Reasoning3.8%
Specs
MetaMuse Spark 1.1
1.0M
Context
16K
Max output
Jul 2026
Released
AnthropicClaude Sonnet 4.5
1M
Context
64K
Max output
Sep 2025
Released
Capabilities
MetaMuse Spark 1.1
Vision
Audio
Reasoning
AnthropicClaude Sonnet 4.5
Vision
Audio
Reasoning
Pricing
MetaMuse Spark 1.1
Live pricing, shown before you run
Input$1.25/M tokens
Output$4.25/M tokens
Cache read$0.15/M tokens
Web search$0.003/search
AnthropicClaude Sonnet 4.5
Live pricing, shown before you run
Input$3.00/M tokens
Output$15.00/M tokens
Cache read$0.30/M tokens
Cache write$3.75/M tokens
Web search$0.01/search
Chat with Muse Spark 1.1Go to model
Chat with Claude Sonnet 4.5Go to model
Frequently Asked Questions: Muse Spark 1.1 vs Claude Sonnet 4.5▼

Which is better, Muse Spark 1.1 or Claude Sonnet 4.5?

▼

Both Muse Spark 1.1 and Claude Sonnet 4.5 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 Sonnet 4.5?

▼

Muse Spark 1.1 has a lower blended cost. Muse Spark 1.1: $1.25 input / $4.25 output. Claude Sonnet 4.5: $3.00 input / $15.00 output.

Which has a larger context window, Muse Spark 1.1 or Claude Sonnet 4.5?

▼

Muse Spark 1.1 has a larger context window: Muse Spark 1.1 supports 1M tokens vs Claude Sonnet 4.5 at 1M tokens.

Do both Muse Spark 1.1 and Claude Sonnet 4.5 support vision?

▼

Yes, both Muse Spark 1.1 and Claude Sonnet 4.5 support vision/image input.

What are the key differences between Muse Spark 1.1 and Claude Sonnet 4.5?

▼

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 Sonnet 4.5 for free on idapt.app to see which performs better for your specific needs.

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