← All Comparisons
o4-mini vs Claude Haiku 4.5
A detailed comparison of o4-mini (OpenAI) and Claude Haiku 4.5 (Anthropic) across pricing, performance, and features.
Pricing Comparison
| Metric | o4-mini | Claude Haiku 4.5 | Difference |
|---|---|---|---|
| Input / 1M tokens | $1.10 | $0.80 | -27% |
| Output / 1M tokens | $4.40 | $4.00 | -9% |
| Context window | 200K | 200K | — |
| Max output | 100K | 8.192K | — |
Benchmark Comparison
| Benchmark | o4-mini | Claude Haiku 4.5 |
|---|---|---|
| MMLU-Pro | 85% | 69.4% |
| HumanEval | 93.5% | 88.1% |
| GPQA | 76% | — |
Capabilities
| Capability | o4-mini | Claude Haiku 4.5 |
|---|---|---|
| code | ✓ | ✓ |
| reasoning | ✓ | ✗ |
| text | ✓ | ✓ |
| tool-use | ✓ | ✓ |
| vision | ✓ | ✓ |
o4-mini Strengths
- ✓Affordable reasoning model
- ✓200K context window
- ✓Good for math and science
o4-mini Weaknesses
- ✗Slower than non-reasoning models
- ✗Reasoning tokens add to effective cost
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: o4-mini scores higher on average across available benchmarks (84.8% avg).
Choose Claude Haiku 4.5 if cost matters most. Choose o4-mini if you need the best possible quality for complex tasks.