Expired50% confidenceBenchmarkExact time
In Phase 1, Opus 5.5 took 4 hours and 44 minutes, made 1,492 calls, and incurred an equivalent bill of $205.49.
1
Sources
50%
Confidence
Short-term (~14 days)
Relevance
10/1/2026
First Seen
Valid until: 10/15/2026(expired)
Sources
Related Entities
Related Claims
UnverifiedIn Phase 1, GPT-6.1 took 1 hour and 20 minutes, made 137 calls, and incurred an equivalent cost of approximately $3.77.71% similarUnverifiedIn Phase 1, Sonnet 5.5 took 4 hours and 50 minutes, made 1,670 calls, and incurred an equivalent bill of $164.79, of which cache reads cost $114.67% similarUnverifiedIn the same task test, Claude Opus 4 (Ultra mode) took approximately 1 hour and cost $21.27.66% 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 $2.03.65% similarUnverifiedIn the test, Sonnet 5.5 used 19 agents, took 78 minutes, and had an equivalent API cost of $57.34.64% similar
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