Unverified50% confidenceBenchmarkExact time
On Terminal Bench 4, Opus 5.5's medium tier scored higher than Fable's max tier, at less than half the price (Fable max tier at $20, Opus 5.5 medium tier at $2.94).
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/25/2026
First Seen
Valid until: 12/24/2026
Sources
Related Entities
Related Claims
UnverifiedIn the e-commerce website test, Opus 4.8's estimated cost was $21.41 while Fable 5's was $36.8472% similarUnverifiedOn Terminal Bench 4.0, Astra costs approximately $10.35 and Fable 5.1 approximately $19.50.71% similarUnverifiedIn the 3D art museum test, Opus 4.8 output 437,000 tokens and Fable 5 output 280,000 tokens, with Fable 5 costing approximately $64, which is about 37% more expensive than Opus 4.8's approximately $46.71% 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 $2.03.70% similarUnverifiedClaude Opus 4.8 achieved a completion rate of only 20.6% on OSWorld 2.0 with a 500-step budget, a partial score of 54.8%, and an average cost of approximately $72.4 per task.69% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/948923API
curl https://kongchang.com/api/v1/knowledge/claims/948923MCP
get_claim(id=948923)