Current benchmark matchup
Claude Opus 5 vs Claude Fable 5
Compare current scores, source confidence, price, context, capabilities, and focused Design Arena results for both models.
Claude Opus 5
Anthropic
Vibe Coding Index
66.6
High confidence
Claude Fable 5
Anthropic
Vibe Coding Index
67.0
High confidence
Current VCI result
Claude Fable 5 leads by 0.4 VCI points.
This result follows the current published source evidence and can change when a scheduled refresh finds newer measurements.
Exact score differences
Side-by-side benchmark data
Measure
Claude Opus 5
Claude Fable 5
Vibe Coding Index
66.6
67.0
Intelligence
61.0
59.9
Coding
78.0
81.2
Agentic
55.0
52.8
Blended price
$10
$20
Context window
1,000,000
1,000,000
Claude Opus 5 evidence
100% core coverageComplete core scores supported by at least two current verified sources.
Capability metadata is waiting for the next catalog refresh.
Claude Fable 5 evidence
100% core coverageComplete core scores supported by at least two current verified sources.
Include reasoningMax completion tokensMax tokensReasoningReasoning effortResponse formatStopStructured outputs
