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GPT 4 Turbo vs Muse Spark Open

At a glance

GPT-4 Turbo with vision capabilities and improved performance.

61128K ctx$10.00/$30.00 per M#68/92

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
CodingInsufficient data
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-10-02
Capability
CapabilityECI61.4
Reasoning & Knowledge
Graduate Science46.6%
Math
Math Problems46.7%Competition Math6.7%
Agentic
Task Horizon7min
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper87%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—
Math
Math Problems—Competition Math—
Agentic
Task Horizon—
Specs
128K
Context
4K
Max output
Apr 2024
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$10.00/M tokens
Output$30.00/M tokens
Live pricing, shown before you run
Input88%$1.25/M tokens
Output86%$4.25/M tokens
Cache read$0.15/M tokens
Chat with GPT 4 TurboGo to model
Chat with Muse Spark OpenGo to model
Frequently Asked Questions: GPT 4 Turbo vs Muse Spark Open▼

Which is better, GPT 4 Turbo or Muse Spark Open?

▼

Both GPT 4 Turbo 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, GPT 4 Turbo or Muse Spark Open?

▼

Muse Spark Open has a lower blended cost. GPT 4 Turbo: $10.00 input / $30.00 output. Muse Spark Open: $1.25 input / $4.25 output.

Which has a larger context window, GPT 4 Turbo or Muse Spark Open?

▼

Muse Spark Open has a larger context window: GPT 4 Turbo supports 128K tokens vs Muse Spark Open at 1M tokens.

Do both GPT 4 Turbo and Muse Spark Open support vision?

▼

Yes, both GPT 4 Turbo and Muse Spark Open support vision/image input.

What are the key differences between GPT 4 Turbo and Muse Spark Open?

▼

Key differences: Muse Spark Open is significantly cheaper; only Muse Spark Open offers extended reasoning mode. 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 GPT 4 Turbo and Muse Spark Open for free on idapt.app to see which performs better for your specific needs.

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