Claude Haiku 5.5 vs o3
Price, context window & benchmark comparison
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Verdict: Claude Haiku 5.5 is 17.5× cheaper than o3 on a typical 3:1 input/output mix. Claude Haiku 5.5 has the larger context window (1M vs 200K).
| Claude Haiku 5.5 | o3 | |
|---|---|---|
| Input price / 1M | $0.10 | $2.00 |
| Output price / 1M | $0.50 | $8.00 |
| Blended price (3:1) | $0.20 | $3.50 |
| Cached input / 1M | $0.01 | $0.50 |
| Context window | 1M | 200K |
| Max output | 128K | 100K |
| Intelligence index | 36.5 | — |
| Coding index | — | — |
| Providers | 10 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | Yes | Yes |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-10-07 | 2025-04-16 |
| Retirement | — | 2026-12-11 |
Cost calculator
FAQ
Which is cheaper, Claude Haiku 5.5 or o3?
Claude Haiku 5.5 is 17.5× cheaper than o3 on a typical 3:1 input/output mix.
Claude Haiku 5.5 vs o3: which has a bigger context window?
Claude Haiku 5.5: 1,000,000 tokens. o3: 200,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: Claude Haiku 5.5 ≈ $450.00, o3 ≈ $8,000.
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