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GPT 5.4 Pro vs Claude Haiku 5.5

At a glance

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

Anthropic's fast, low-cost Claude Haiku for high-volume work, succeeding Claude Haiku 4.5.

1M ctx$0.10/$0.50 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
CodingInsufficient data
AgenticInsufficient data
MathInsufficient data
Sources:Epoch ECI·Epoch AI·OpenRouter· as of 2026-10-02
Capability
CapabilityECI89.1
Reasoning & Knowledge
Graduate Science94.6%Factual Recall46.3%
Math
Research Math50.0%
Agentic
Novel Reasoning83.3%
Reasoning
CodingInsufficient data
AgenticInsufficient data
ReasoningInsufficient data
MathInsufficient data
Sources:OpenRouter
Cheaper100%
Capability
Capability—
Reasoning & Knowledge
Graduate Science—Factual Recall—
Math
Research Math—
Agentic
Novel Reasoning—
Specs
1.1M
Context
128K
Max output
Mar 2026
Released
1M
Context
128K
Max output
Oct 2026
Released
Capabilities
Vision
Audio
Reasoning
Vision
Audio
Reasoning
Pricing
Live pricing, shown before you run
Input$30.00/M tokens
Output$180.00/M tokens
Web search$0.01/search
Live pricing, shown before you run
Input100%$0.10/M tokens
Output100%$0.50/M tokens
Cache read$0.01/M tokens
Cache write$0.13/M tokens
Web search$0.01/search
Chat with GPT 5.4 ProGo to model
Chat with Claude Haiku 5.5Go to model
Frequently Asked Questions: GPT 5.4 Pro vs Claude Haiku 5.5▼

Which is better, GPT 5.4 Pro or Claude Haiku 5.5?

▼

Both GPT 5.4 Pro and Claude Haiku 5.5 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 Pro or Claude Haiku 5.5?

▼

Claude Haiku 5.5 has a lower blended cost. GPT 5.4 Pro: $30.00 input / $180.00 output. Claude Haiku 5.5: $0.10 input / $0.50 output.

Which has a larger context window, GPT 5.4 Pro or Claude Haiku 5.5?

▼

GPT 5.4 Pro has a larger context window: GPT 5.4 Pro supports 1.1M tokens vs Claude Haiku 5.5 at 1M tokens.

Do both GPT 5.4 Pro and Claude Haiku 5.5 support vision?

▼

Yes, both GPT 5.4 Pro and Claude Haiku 5.5 support vision/image input.

What are the key differences between GPT 5.4 Pro and Claude Haiku 5.5?

▼

Key differences: Claude Haiku 5.5 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 GPT 5.4 Pro and Claude Haiku 5.5 for free on idapt.app to see which performs better for your specific needs.

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