Claude Haiku 4.5 vs o3
Claude Haiku 4.5 leads in 3 of 8 categories
Arena ELO
o3
Cheaper
Claude Haiku 4.5
Faster
Claude Haiku 4.5
Detailed Comparison
| Category | Claude Haiku 4.5 | o3 |
|---|---|---|
| Provider | Anthropic | OpenAI |
| Context Window | 200K | 200K |
| Input Price ($/1M) | $0.8 WIN | $10 |
| Output Price ($/1M) | $4 WIN | $40 |
| Arena ELO | 1290 | 1350 WIN |
| Coding | unknown | unknown |
| Reasoning | unknown | unknown |
| Speed (tokens/sec) | ~120 t/s WIN | ~30 t/s |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Claude Haiku 4.5 or o3?
Claude Haiku 4.5 is approximately 90% cheaper than o3 per million tokens.
Which is better for coding, Claude Haiku 4.5 or o3?
Claude Haiku 4.5 scores unknown on coding benchmarks, while o3 scores unknown.
Which has a larger context window?
Claude Haiku 4.5 supports 200K context, while o3 supports 200K.
Is Claude Haiku 4.5 or o3 open source?
Claude Haiku 4.5 is proprietary. o3 is proprietary.
Which ranks higher on the Chatbot Arena leaderboard?
o3 ranks higher with ELO 1350 vs 1290.
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