Claude Haiku 4.5 vs GPT 5.1
Fast and efficient with near-frontier intelligence.
Frontier-grade model with strong general-purpose reasoning.
No captured outputs for these models yet.
Frequently Asked Questions: Claude Haiku 4.5 vs GPT 5.1▼
Which is better, Claude Haiku 4.5 or GPT 5.1?
▼
Based on the Capability Index, GPT 5.1 scores higher (81.6 vs 75.3). However, "better" depends on your use case — pricing, speed, context window, and specific capability needs all matter.
Which is cheaper, Claude Haiku 4.5 or GPT 5.1?
▼
Claude Haiku 4.5 has a lower blended cost. Claude Haiku 4.5: $1.00 input / $5.00 output. GPT 5.1: $1.25 input / $10.00 output.
Which has a larger context window, Claude Haiku 4.5 or GPT 5.1?
▼
GPT 5.1 has a larger context window: Claude Haiku 4.5 supports 200K tokens vs GPT 5.1 at 400K tokens.
Do both Claude Haiku 4.5 and GPT 5.1 support vision?
▼
Yes, both Claude Haiku 4.5 and GPT 5.1 support vision/image input.
What are the key differences between Claude Haiku 4.5 and GPT 5.1?
▼
Key differences: GPT 5.1 has a notably higher capability index (6.3 point gap). 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 Haiku 4.5 and GPT 5.1 for free on idapt.app to see which performs better for your specific needs.