Note: later GPT versions seem to be only available within openAi's proprietary codex cli, so can't be tested - and if tested via the codex cli "harness" it wouldn't be a pure model-to-model comparison any more.
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Of course, the interesting follow-up question is: How well perform these models with added agent tooling ("harness") ?
Maybe someone has tokens to burn and can run a matrix of agent tools over the top models and provide the results?
* Claude Opus 4.6 : 0.71
* Claude Opus 4.5 : 0.51
* KIMI-K2.5 : 0.37
* GLM-5 : 0.36
* GPT-5.2 : 0.23
Note: later GPT versions seem to be only available within openAi's proprietary codex cli, so can't be tested - and if tested via the codex cli "harness" it wouldn't be a pure model-to-model comparison any more.
---
Of course, the interesting follow-up question is: How well perform these models with added agent tooling ("harness") ?
Maybe someone has tokens to burn and can run a matrix of agent tools over the top models and provide the results?