Verified65% confidenceFactExact time
Opus 5.5's release page directly uses GPT-6's Astra as its comparison target.
3
Sources
65%
Confidence
Medium-term (~90 days)
Relevance
9/30/2026
First Seen
Valid until: 12/29/2026
Sources
Related Entities
Related Claims
VerifiedThe API model identifier for GPT-6 Astra is gpt-6-astra.79% similarVerifiedGPT-6 Sol and Anthropic's Opus 5.5 were released on the same day.78% similarUnverifiedIn tasks involving painting in the style of Along the River During the Qingming Festival and creative writing, GPT-6.1 Sol underperforms Opus 5.5 and Astra77% similarUnverifiedThe project used Claude, Codex (especially the GPT-5 series), and later ASTRA, with ASTRA used only for organizing the manuscript and reviewing the arguments.76% similarUnverifiedClaude Opus 5.5 is a frontier-level intelligence model that provides a level of intelligence comparable to top models such as GPT-6 Astra, but is faster and cheaper.76% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/961526API
curl https://kongchang.com/api/v1/knowledge/claims/961526MCP
get_claim(id=961526)