Expired50% confidenceFactExact time
The two projects tested had previously gone through one round of development using a combination of Claude Opus 4.5 and GPT-5.5.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
7/18/2026
First Seen
Valid until: 10/16/2026(expired)
Sources
Related Claims
VerifiedM2.5 achieved performance on coding tasks approaching that of flagship-level models such as Claude Opus 4.6 and GPT-5.2.80% similarUnverifiedComposer 2.5 belongs to the same tier as Claude Opus 4.7 and GPT 5.5 in the SweepBench multilingual test78% similarVerifiedThePrimeagen tested Claude Opus 4.6 and GPT 5.3 Codex on the same day, pitting them against each other in a coding battle using identical tasks.77% similarUnverifiedGPT-5.6 comprehensively outperformed Claude Opus and Opus 4.5 in tests covering knowledge work, science, and health domains.76% similarUnverifiedIn a domino physics simulation test, Opus 4.5 completed five formation designs with a single prompt, while GPT-5.2 Codex required two prompts to reach a basically usable state.76% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/550732API
curl https://kongchang.com/api/v1/knowledge/claims/550732MCP
get_claim(id=550732)