Claude Haiku 4.5 vs Claude Opus 4.5
Claude Haiku 4.5 leads in 3 of 8 categories
Arena ELO
Claude Opus 4.5
Cheaper
Claude Haiku 4.5
Faster
Claude Haiku 4.5
Detailed Comparison
| Category | Claude Haiku 4.5 | Claude Opus 4.5 |
|---|---|---|
| Provider | Anthropic | Anthropic |
| Context Window | 200K | 200K |
| Input Price ($/1M) | $0.8 WIN | $5 |
| Output Price ($/1M) | $4 WIN | $25 |
| Arena ELO | 1290 | 1380 WIN |
| Coding | unknown | 80.9% SWE-bench |
| Reasoning | unknown | unknown |
| Speed (tokens/sec) | ~120 t/s WIN | ~35 t/s |
| Open Source | No | No |
Frequently Asked Questions
Which is cheaper, Claude Haiku 4.5 or Claude Opus 4.5?
Claude Haiku 4.5 is approximately 84% cheaper than Claude Opus 4.5 per million tokens.
Which is better for coding, Claude Haiku 4.5 or Claude Opus 4.5?
Claude Haiku 4.5 scores unknown on coding benchmarks, while Claude Opus 4.5 scores 80.9% SWE-bench.
Which has a larger context window?
Claude Haiku 4.5 supports 200K context, while Claude Opus 4.5 supports 200K.
Is Claude Haiku 4.5 or Claude Opus 4.5 open source?
Claude Haiku 4.5 is proprietary. Claude Opus 4.5 is proprietary.
Which ranks higher on the Chatbot Arena leaderboard?
Claude Opus 4.5 ranks higher with ELO 1380 vs 1290.
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