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Claude Opus 5 vs GPT 5.4 Pro

At a glance

Anthropic's flagship for demanding reasoning, coding, and long-horizon agentic work.

1M ctx$5.00/$25.00 per M

OpenAI's most advanced reasoning model, built on GPT 5.4's unified architecture.

891.1M ctx$30.00/$180.00 per M#5/92
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
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper85%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Research Math—
Agentic
Novel Reasoning—
Reasoning
CodingInsufficient data
AgenticInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-07-10
Capability
CapabilityECI89.1
Reasoning & Knowledge
Graduate Science94.6%Factual Recall47.8%
Math
Research Math50.0%
Agentic
Novel Reasoning83.3%
Specs
1M
Context
128K
Max output
Jul 2026
Released
1.1M
Context
128K
Max output
Mar 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input83%$5.00/M tokens
Output86%$25.00/M tokens
Cache read$0.50/M tokens
Cache write$6.25/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input$30.00/M tokens
Output$180.00/M tokens
Web search$0.01/search
Chat with Claude Opus 5Go to model
Chat with GPT 5.4 ProGo to model
Frequently Asked Questions: Claude Opus 5 vs GPT 5.4 Pro▼

Which is better, Claude Opus 5 or GPT 5.4 Pro?

▼

Both Claude Opus 5 and GPT 5.4 Pro 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, Claude Opus 5 or GPT 5.4 Pro?

▼

Claude Opus 5 has a lower blended cost. Claude Opus 5: $5.00 input / $25.00 output. GPT 5.4 Pro: $30.00 input / $180.00 output.

Which has a larger context window, Claude Opus 5 or GPT 5.4 Pro?

▼

GPT 5.4 Pro has a larger context window: Claude Opus 5 supports 1M tokens vs GPT 5.4 Pro at 1.1M tokens.

Do both Claude Opus 5 and GPT 5.4 Pro support vision?

▼

Yes, both Claude Opus 5 and GPT 5.4 Pro support vision/image input.

What are the key differences between Claude Opus 5 and GPT 5.4 Pro?

▼

Key differences: Claude Opus 5 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 Claude Opus 5 and GPT 5.4 Pro for free on idapt.app to see which performs better for your specific needs.

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