Expired50% confidenceBenchmarkExact time
Per-test token costs: Fable 5.1 via Burden was approximately $113, and Astra via Codex was approximately $198, making Astra about 75% more expensive.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
9/11/2026
First Seen
This claim has expired. It is kept for the record and no longer describes the current state.
Valid until: 9/25/2026(expired)
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Related Claims
UnverifiedIn this 15-round evaluation, Claude Fable 5.1 took a total of 9 hours 35 minutes and cost $513.36; GPT-6 Astra took a total of 11 hours 19 minutes and cost $326.98 — Astra was approximately $186 cheaper overall but took about 1 hour 43 minutes longer than Fable.73% similarUnverifiedIn the e-commerce website test, Opus 4.8's estimated cost was $21.41 while Fable 5's was $36.8469% similarUnverifiedThe solution pairing Codex with GPT-5.5 costs approximately 140 RMB per month.68% similarVerifiedAccounting for real usage scenarios, the actual cost advantage of Opus 5 over Fable is approximately 20% to 25%, with Fable costing about $2.75 per task and Opus 5 about $2.03.68% similarUnverifiedIn API relay mode, the cost per million tokens is typically between a few dollars and over ten dollars, and the average monthly cost for moderate-intensity programming assistance use can be kept at $5–20.67% similar
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