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GPT-4o Mini vs Claude Haiku 4.5
A detailed comparison of GPT-4o Mini (OpenAI) and Claude Haiku 4.5 (Anthropic) across pricing, performance, and features.
Pricing Comparison
| Metric | GPT-4o Mini | Claude Haiku 4.5 | Difference |
|---|---|---|---|
| Input / 1M tokens | $0.15 | $0.80 | +433% |
| Output / 1M tokens | $0.60 | $4.00 | +567% |
| Context window | 128K | 200K | — |
| Max output | 16.384K | 8.192K | — |
Benchmark Comparison
| Benchmark | GPT-4o Mini | Claude Haiku 4.5 |
|---|---|---|
| MMLU-Pro | 68% | 69.4% |
| HumanEval | 87.2% | 88.1% |
Capabilities
| Capability | GPT-4o Mini | Claude Haiku 4.5 |
|---|---|---|
| code | ✓ | ✓ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
GPT-4o Mini Strengths
- ✓Extremely cheap
- ✓Fast responses
- ✓Good enough for many production tasks
GPT-4o Mini Weaknesses
- ✗Weaker reasoning than full models
- ✗Can hallucinate more on complex topics
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: GPT-4o Mini is the more affordable option at $0.15/$0.6 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 GPT-4o Mini if cost matters most. Choose Claude Haiku 4.5 if you need the best possible quality for complex tasks.