Sanity Harness scores Kimi K2.6, Opus 4.7

This is less a model launch than a reality check: the frontier still looks meaningfully ahead, but the margins inside the top tier are getting clearer and more interesting.

• –Opus 4.7 appears to be the strongest signal in the batch, which matters because many recent “upgrades” have been mostly marketing.
• –Kimi K2.6-Code-Preview is promising, but the post itself treats it as premature evidence rather than a final verdict.
• –GLM 5.1 seems to be the best open-weight showing here, while Minimax M2.7 sits in the useful middle tier for price and local deployment.
• –ForgeCode’s strong Minimax result is interesting, but the author says the tool is buggy and too workflow-specific to recommend broadly yet.
• –Sanity Harness’s value is the methodology: sandboxed runs, Docker validation, and weighted scoring make the leaderboard more credible than a single-model demo.
• –For coding-agent buyers, this reinforces a familiar split: frontier models still buy reliability, while open-weight options buy cost control and deployability.