Claude Haiku 4.5 vs GPT 5 Codex
Fast and efficient with near-frontier intelligence.
GPT-5 optimized for code generation and software engineering tasks.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Haiku 4.5 vs GPT 5 Codex▼
Which is better, Claude Haiku 4.5 or GPT 5 Codex?
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Both Claude Haiku 4.5 and GPT 5 Codex 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 Codex?
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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 Codex: $1.25 input / $10.00 output.
Which has a larger context window, Claude Haiku 4.5 or GPT 5 Codex?
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GPT 5 Codex has a larger context window: Claude Haiku 4.5 supports 200K tokens vs GPT 5 Codex at 400K tokens.
Do both Claude Haiku 4.5 and GPT 5 Codex support vision?
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Yes, both Claude Haiku 4.5 and GPT 5 Codex support vision/image input.
What are the key differences between Claude Haiku 4.5 and GPT 5 Codex?
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Claude Haiku 4.5 and GPT 5 Codex 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 Codex for free on idapt.app to see which performs better for your specific needs.