Claude Fable 5.2 vs GPT-6 Astra: head-to-head AI benchmark comparison. Claude Fable 5.2 leads on intelligence index, output speed, time to first token, output price and input price.
Claude Fable 5.2 (Max, Default Fallback) vs GPT-6 Astra (Max) benchmark comparison
Claude Fable 5.2 (Max, Default Fallback) vs GPT-6 Astra (Max) scores 64.6 and 56.9 on the captured intelligence index. Compare token rates and response timing.
Pick it for Claude Fable 5.2 · Max, Default Fallback
Try Fable when the listed rate and measured response timing fit the test.
Pick it for GPT-6 Astra · Max
Test Astra on the same difficult tasks under a shared review 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.
Fable lists $8 input and $40 output per million tokens against Astra’s $10 and $50. Fable also has the higher captured aggregate index and recorded output rate. The Fable configuration reached its first token sooner in this capture.
What to measure on your workload
A comparison on real requests should record the total amount of billed output and which answers pass review. The ordering on the index and timing numbers does not establish which model handles a particular repository or domain better.
Questions about Claude Fable 5.2 and GPT-6 Astra
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 304.07 seconds for GPT-6 Astra (Max).
What is the measured output speed?
Captured output throughput is 94.67 tokens per second for Claude Fable 5.2 (Max, Default Fallback) and 49.45 tokens per second for GPT-6 Astra (Max).
What release dates does the benchmark record list?
Claude Fable 5.2 has a recorded release date of 2026-11-09. GPT-6 Astra has a recorded release date of 2026-09-03.
Final whistle
Fable lists $8 input and $40 output per million tokens against Astra’s $10 and $50. Fable also has the higher captured aggregate index and recorded output rate. The Fable configuration reached its first token sooner in this capture.
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 GPT-6 Astra (Max) pages. The AI Benchmark methodology explains how that data is collected and shown.
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