Head-to-head AI model comparison graphic: Claude Fable 5.2 (Anthropic) vs Claude Opus 5.5 (Anthropic). Intelligence index 64.6 vs 59.1; output speed 95 vs 94 tokens per second; time to first token 4.2 min vs 11.0 min; output price $40.00 vs $20.00 per million tokens; input price $8.00 vs $4.00 per million tokens. franklineh.com
Claude Fable 5.2 vs Claude Opus 5.5: head-to-head AI benchmark comparison. Claude Fable 5.2 leads on intelligence index, output speed and time to first token; Claude Opus 5.5 leads on output price and input price.
Head to headBy Franklin AIUpdated

Claude Fable 5.2 (Max, Default Fallback) vs Claude Opus 5.5 (Max, Default Fallback) benchmark comparison

Claude Fable 5.2 (Max, Default Fallback) vs Claude Opus 5.5 (Max, Default Fallback) scores 64.6 and 59.1 on the captured intelligence index. Compare token rates and response timing.

Pick it for Claude Fable 5.2 · Max, Default Fallback

  • Evaluate Fable where a shorter observed initial wait is valuable.

Pick it for Claude Opus 5.5 · Max, Default Fallback

  • Measure Opus at the lower rates on the same acceptance rubric.

By the numbers

These figures describe the two model configurations shown here. A dash means the source snapshot had no usable figure for that metric. Scores, speed and API pricing may change as providers update models.

MetricClaude Fable 5.2 (Max, Default Fallback)Claude Opus 5.5 (Max, Default Fallback)
Intelligence Index64.659.1
Input price (per 1M tokens)$8.00$4.00
Output price (per 1M tokens)$40.00$20.00
Output speed (tokens/s)9594
Time to first token4.2 min11.0 min
Release date2026-11-092026-09-22

The current benchmark capture reports aggregate intelligence indices of 64.6 for Claude Fable 5.2 (Max, Default Fallback) and 59.1 for Claude Opus 5.5 (Max, Default Fallback).

Fable and Opus at their captured Max settings

Fable lists $8 input and $40 output per million tokens, twice the listed Opus rates. Fable leads the captured index and reaches its first token sooner. Their measured output rates after the first token are close.

What to measure on your workload

Use the same task and score rubric with the captured configurations. If a request produces a long response, compare the initial wait separately from the time it takes to emit the full answer.

Questions about Claude Fable 5.2 and Claude Opus 5.5

How long does each variant take to start responding?

The captured time to first token is 253.38 seconds for Claude Fable 5.2 (Max, Default Fallback) and 659.91 seconds for Claude Opus 5.5 (Max, Default Fallback).

What is the measured output speed?

Captured output throughput is 94.67 tokens per second for Claude Fable 5.2 (Max, Default Fallback) and 94.06 tokens per second for Claude Opus 5.5 (Max, Default Fallback).

What release dates does the benchmark record list?

Claude Fable 5.2 has a recorded release date of 2026-11-09. Claude Opus 5.5 has a recorded release date of 2026-09-22.

Final whistle

Fable lists $8 input and $40 output per million tokens, twice the listed Opus rates. Fable leads the captured index and reaches its first token sooner. Their measured output rates after the first token are close.

Where the numbers come from

The scores, speed and prices in this comparison come from independent third-party model evaluations that Franklin AI syncs each day, and the article was written from a snapshot of them. For the latest results, open the Claude Fable 5.2 (Max, Default Fallback) and Claude Opus 5.5 (Max, Default Fallback) pages. The AI Benchmark methodology explains how that data is collected and shown.

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