Claude Haiku 5.5 vs GPT-5 Nano

Price, context window & benchmark comparison

Anthropic

Claude Haiku 5.5

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

GPT-5 Nano

OpenAI
$0.05 / $0.40
Input / Output · per 1M tokens
Compare different models
Anthropic
OpenAI
Verdict: GPT-5 Nano is 31% cheaper than Claude Haiku 5.5 on a typical 3:1 input/output mix. Claude Haiku 5.5 has the larger context window (1M vs 400K).
Claude Haiku 5.5GPT-5 Nano
Input price / 1M$0.10$0.05
Output price / 1M$0.50$0.40
Blended price (3:1)$0.20$0.14
Cached input / 1M$0.01$0.005
Context window1M400K
Max output128K128K
Intelligence index36.5—
Coding index——
Providers10—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingYesYes
Released2026-10-072025-08-07
Retirement—2026-12-11

Cost calculator

FAQ

Which is cheaper, Claude Haiku 5.5 or GPT-5 Nano?

GPT-5 Nano is 31% cheaper than Claude Haiku 5.5 on a typical 3:1 input/output mix.

Claude Haiku 5.5 vs GPT-5 Nano: which has a bigger context window?

Claude Haiku 5.5: 1,000,000 tokens. GPT-5 Nano: 400,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Haiku 5.5 ≈ $450.00, GPT-5 Nano ≈ $300.00.

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