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Gemini 3.1 Pro vs Muse Spark Open

At a glance

Google's frontier model with a large leap in core reasoning.

861.0M ctx$2.00/$12.00 per M#10/92

Meta's strongest open-weight model, trained specifically for agentic coding workflows.

1.0M ctx$1.25/$4.25 per M
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
Sources:Epoch ECI·Epoch AI·Provider·OpenRouter· as of 2026-10-02
Capability
CapabilityECI86.4
Reasoning & Knowledge
Graduate Science94.4%Expert-Level46.4%Factual Recall73.5%
Math
Competition Math95.6%Research Math36.9%
Coding
Real-World Coding80.6%
Agentic
Terminal Tasks80.2%Novel Reasoning77.1%Task Horizon6.4h
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper56%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Expert-Level—Factual Recall—
Math
Competition Math—Research Math—
Coding
Real-World Coding—
Agentic
Terminal Tasks—Novel Reasoning—Task Horizon—
Specs
1.0M
Context
66K
Max output
Feb 2026
Released
1.0M
Context
256K
Max output
Oct 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$2.00/M tokens
Output$12.00/M tokens
Reasoning$12.00/M tokens
Cache read$0.20/M tokens
Cache write$0.38/M tokens
Image input$2.00/M tokens
Audio input$2.00/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input38%$1.25/M tokens
Output65%$4.25/M tokens
Cache read25%$0.15/M tokens
Chat with Gemini 3.1 ProGo to model
Chat with Muse Spark OpenGo to model
Frequently Asked Questions: Gemini 3.1 Pro vs Muse Spark Open▼

Which is better, Gemini 3.1 Pro or Muse Spark Open?

▼

Both Gemini 3.1 Pro and Muse Spark Open 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, Gemini 3.1 Pro or Muse Spark Open?

▼

Muse Spark Open has a lower blended cost. Gemini 3.1 Pro: $2.00 input / $12.00 output. Muse Spark Open: $1.25 input / $4.25 output.

Which has a larger context window, Gemini 3.1 Pro or Muse Spark Open?

▼

Gemini 3.1 Pro has a larger context window: Gemini 3.1 Pro supports 1M tokens vs Muse Spark Open at 1M tokens.

Do both Gemini 3.1 Pro and Muse Spark Open support vision?

▼

Yes, both Gemini 3.1 Pro and Muse Spark Open support vision/image input.

What are the key differences between Gemini 3.1 Pro and Muse Spark Open?

▼

Gemini 3.1 Pro and Muse Spark Open have similar overall capabilities. The main differences lie in pricing, context window size, and provider-specific strengths. Use this comparison page to review all metrics side by side.

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 Gemini 3.1 Pro and Muse Spark Open for free on idapt.app to see which performs better for your specific needs.

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