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GPT-4o vs Claude Haiku 4.5
A detailed comparison of GPT-4o (OpenAI) and Claude Haiku 4.5 (Anthropic) across pricing, performance, and features.
Pricing Comparison
| Metric | GPT-4o | Claude Haiku 4.5 | Difference |
|---|---|---|---|
| Input / 1M tokens | $2.50 | $0.80 | -68% |
| Output / 1M tokens | $10.00 | $4.00 | -60% |
| Context window | 128K | 200K | — |
| Max output | 16.384K | 8.192K | — |
Benchmark Comparison
| Benchmark | GPT-4o | Claude Haiku 4.5 |
|---|---|---|
| MMLU-Pro | 80.5% | 69.4% |
| HumanEval | 91% | 88.1% |
| GPQA | 64.2% | — |
Capabilities
| Capability | GPT-4o | Claude Haiku 4.5 |
|---|---|---|
| audio | ✓ | ✗ |
| code | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
GPT-4o Strengths
- ✓Well-established and reliable
- ✓Large ecosystem of tools and integrations
GPT-4o Weaknesses
- ✗Being superseded by GPT-5 series
- ✗Higher price than newer, better alternatives
Claude Haiku 4.5 Strengths
- ✓Very fast responses
- ✓Cheapest Anthropic option
- ✓Good for classification and extraction
Claude Haiku 4.5 Weaknesses
- ✗Weakest reasoning in the Claude family
- ✗Can struggle with nuanced instructions
Quick Verdict
Best value: Claude Haiku 4.5 is the more affordable option at $0.8/$4 per 1M tokens.
Higher benchmarks: Claude Haiku 4.5 scores higher on average across available benchmarks (78.8% avg).
Larger context: Claude Haiku 4.5 supports 200K tokens.
Choose Claude Haiku 4.5 if cost matters most. Choose GPT-4o if you need the best possible quality for complex tasks.