Current benchmark matchup
Claude Opus 5 vs GPT-5.6 Sol
Compare current scores, source confidence, price, context, capabilities, and focused Design Arena results for both models.
Claude Opus 5
Anthropic
Vibe Coding Index
—
Pending evidence
GPT-5.6 Sol
OpenAI
Vibe Coding Index
66.5
High confidence
Current VCI result
A complete VCI result is not available for both models yet.
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
GPT-5.6 Sol
Vibe Coding Index
—
66.5
Intelligence
—
57.7
Coding
—
81.8
Agentic
—
51.8
Blended price
—
$11.25
Context window
—
1,050,000
Claude Opus 5 evidence
0% core coverageThe model remains outside verified rankings until all core scores are available.
Capability metadata is waiting for the next catalog refresh.
GPT-5.6 Sol evidence
100% core coverageComplete core scores supported by at least two current verified sources.
Include reasoningMax completion tokensMax tokensReasoningReasoning effortResponse formatSeedStructured outputs