Claude Fable 5.2 vs o1-pro

Price, context window & benchmark comparison

Anthropic

Claude Fable 5.2

Anthropic
$8.00 / $40.00
Input / Output · per 1M tokens
VS
OpenAI

o1-pro

OpenAI
$150.00 / $600.00
Input / Output · per 1M tokens
Compare different models
Anthropic
OpenAI
Verdict: Claude Fable 5.2 is 16.4× cheaper than o1-pro on a typical 3:1 input/output mix. Claude Fable 5.2 has the larger context window (1M vs 200K).
Claude Fable 5.2o1-pro
Input price / 1M$8.00$150.00
Output price / 1M$40.00$600.00
Blended price (3:1)$16.00$262.50
Cached input / 1M$0.20—
Context window1M200K
Max output128K100K
Intelligence index64.6—
Coding index——
Providers5—
Best provider uptime (30m)100.0%—
Vision inputYesYes
ReasoningYesYes
Tool callingYesNo
Released2026-11-072025-03-19
Retirement——

Cost calculator

FAQ

Which is cheaper, Claude Fable 5.2 or o1-pro?

Claude Fable 5.2 is 16.4× cheaper than o1-pro on a typical 3:1 input/output mix.

Claude Fable 5.2 vs o1-pro: which has a bigger context window?

Claude Fable 5.2: 1,000,000 tokens. o1-pro: 200,000 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: Claude Fable 5.2 ≈ $36,000, o1-pro ≈ $600,000.

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