One of the most powerful flows in agentic coding that people are not utilising is mixing harnesses and models.
Here's a demo of GPT-6 Astra in Codex communicating through tmux-ide with Claude Code. Different harnesses & models excel at different goals. E.g Fable 5.1 is still
Opus 5.2 is coming AT THE END of this MONTH
Polymarket gives an 81% chance of a September release the model is being tested as Opus 5 in Claude Code prompt to check your CC in the comments Opus 5.2 isn't lazy; it handles details very well it has a great conversational style
The same run at real speed, no cuts.
7 minutes 25 seconds from one ask to three merged worktrees. Opus 5 split the work, OpenCode 2 workers on DeepSeek 4.1 Flash built the pages in parallel, and every diff got reviewed before it landed.
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