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GPT 4o vs Muse Spark 1.3

At a glance

OpenAI's original omni model supporting text and image inputs.

63128K ctx$2.50/$10.00 per M#64/92

Meta's latest multimodal reasoning model for long-running agentic, multi-agent, and 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
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI63.0
Reasoning & Knowledge
Graduate Science49.2%Expert-Level2.7%
Math
Math Problems53.3%Competition Math6.4%Research Math0.3%
Coding
Real-World Coding31.0%Code Editing23.1%
Agentic
Task Horizon9min
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper54%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Expert-Level—
Math
Math Problems—Competition Math—Research Math—
Coding
Real-World Coding—Code Editing—
Agentic
Task Horizon—
Specs
128K
Context
16K
Max output
May 2024
Released
1.0M
Context
256K
Max output
Sep 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$2.50/M tokens
Output$10.00/M tokens
Cache read$1.25/M tokens
Live pricing, shown before you run
Input50%$1.25/M tokens
Output57%$4.25/M tokens
Cache read88%$0.15/M tokens
Web search$0.003/search
Chat with GPT 4oGo to model
Chat with Muse Spark 1.3Go to model
Frequently Asked Questions: GPT 4o vs Muse Spark 1.3▼

Which is better, GPT 4o or Muse Spark 1.3?

▼

Both GPT 4o and Muse Spark 1.3 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 4o or Muse Spark 1.3?

▼

Muse Spark 1.3 has a lower blended cost. GPT 4o: $2.50 input / $10.00 output. Muse Spark 1.3: $1.25 input / $4.25 output.

Which has a larger context window, GPT 4o or Muse Spark 1.3?

▼

Muse Spark 1.3 has a larger context window: GPT 4o supports 128K tokens vs Muse Spark 1.3 at 1M tokens.

Do both GPT 4o and Muse Spark 1.3 support vision?

▼

Yes, both GPT 4o and Muse Spark 1.3 support vision/image input.

What are the key differences between GPT 4o and Muse Spark 1.3?

▼

Key differences: only Muse Spark 1.3 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 4o and Muse Spark 1.3 for free on idapt.app to see which performs better for your specific needs.

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