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GPT 5.4 vs Muse Spark 1.1

At a glance
OpenAIGPT 5.4

OpenAI's latest frontier model, unifying the Codex and GPT lines into one system.

871.1M ctx$2.50/$15.00 per M#7/92
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
AI Output
All AI outputs

No captured outputs for these models yet.

Benchmarks
See rankings
OpenAIGPT 5.4
Reasoning
AgenticInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI87.4
Reasoning & Knowledge
Graduate Science93.3%Expert-Level36.2%Factual Recall44.8%
Math
Competition Math95.3%Research Math47.6%
Coding
Real-World Coding76.9%
Agentic
Terminal Tasks—Novel Reasoning74.0%Task Horizon5.7h
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—Task Horizon—
Specs
OpenAIGPT 5.4
1.1M
Context
128K
Max output
Mar 2026
Released
MetaMuse Spark 1.1
1.0M
Context
16K
Max output
Jul 2026
Released
Capabilities
OpenAIGPT 5.4
Vision
Audio
Reasoning
MetaMuse Spark 1.1
Vision
Audio
Reasoning
Pricing
OpenAIGPT 5.4
Live pricing, shown before you run
Input$2.50/M tokens
Output$15.00/M tokens
Cache read$0.25/M tokens
Web search$0.01/search
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
Chat with GPT 5.4Go to model
Chat with Muse Spark 1.1Go to model
Frequently Asked Questions: GPT 5.4 vs Muse Spark 1.1▼

Which is better, GPT 5.4 or Muse Spark 1.1?

▼

Both GPT 5.4 and Muse Spark 1.1 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 5.4 or Muse Spark 1.1?

▼

Muse Spark 1.1 has a lower blended cost. GPT 5.4: $2.50 input / $15.00 output. Muse Spark 1.1: $1.25 input / $4.25 output.

Which has a larger context window, GPT 5.4 or Muse Spark 1.1?

▼

GPT 5.4 has a larger context window: GPT 5.4 supports 1.1M tokens vs Muse Spark 1.1 at 1M tokens.

Do both GPT 5.4 and Muse Spark 1.1 support vision?

▼

Yes, both GPT 5.4 and Muse Spark 1.1 support vision/image input.

What are the key differences between GPT 5.4 and Muse Spark 1.1?

▼

GPT 5.4 and Muse Spark 1.1 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 GPT 5.4 and Muse Spark 1.1 for free on idapt.app to see which performs better for your specific needs.

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