Claude Haiku 4.5 vs GPT 5.1 Codex Max
Fast and efficient with near-frontier intelligence.
Extended-context coding model for large codebase operations.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Haiku 4.5 vs GPT 5.1 Codex Max▼
Which is better, Claude Haiku 4.5 or GPT 5.1 Codex Max?
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Both Claude Haiku 4.5 and GPT 5.1 Codex Max 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 Haiku 4.5 or GPT 5.1 Codex Max?
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Claude Haiku 4.5 has a lower blended cost. Claude Haiku 4.5: $1.00 input / $5.00 output. GPT 5.1 Codex Max: $1.25 input / $10.00 output.
Which has a larger context window, Claude Haiku 4.5 or GPT 5.1 Codex Max?
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GPT 5.1 Codex Max has a larger context window: Claude Haiku 4.5 supports 200K tokens vs GPT 5.1 Codex Max at 400K tokens.
Do both Claude Haiku 4.5 and GPT 5.1 Codex Max support vision?
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Yes, both Claude Haiku 4.5 and GPT 5.1 Codex Max support vision/image input.
What are the key differences between Claude Haiku 4.5 and GPT 5.1 Codex Max?
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Claude Haiku 4.5 and GPT 5.1 Codex Max 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?
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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 Haiku 4.5 and GPT 5.1 Codex Max for free on idapt.app to see which performs better for your specific needs.