Claude Haiku 5.5 vs o3 Mini

Price, context window & benchmark comparison

Anthropic

Claude Haiku 5.5

Anthropic
$0.10 / $0.50
Input / Output · per 1M tokens
VS
OpenAI

o3 Mini

OpenAI
$1.10 / $4.40
Input / Output · per 1M tokens
Compare different models
Anthropic
OpenAI
Verdict: Claude Haiku 5.5 is 9.6× cheaper than o3 Mini on a typical 3:1 input/output mix. Claude Haiku 5.5 has the larger context window (1M vs 200K).
Claude Haiku 5.5o3 Mini
Input price / 1M$0.10$1.10
Output price / 1M$0.50$4.40
Blended price (3:1)$0.20$1.93
Cached input / 1M$0.01$0.55
Context window1M200K
Max output128K100K
Intelligence index36.5—
Coding index——
Providers10—
Best provider uptime (30m)100.0%—
Vision inputYesNo
ReasoningYesYes
Tool callingYesYes
Released2026-10-072025-01-31
Retirement——

Cost calculator

FAQ

Which is cheaper, Claude Haiku 5.5 or o3 Mini?

Claude Haiku 5.5 is 9.6× cheaper than o3 Mini on a typical 3:1 input/output mix.

Claude Haiku 5.5 vs o3 Mini: which has a bigger context window?

Claude Haiku 5.5: 1,000,000 tokens. o3 Mini: 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 Mini ≈ $4,400.

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