Comparison between local Qwen3.8 27B IQ4_XS and Opus 5.
The result is good. Same prompt, no further iterations, probably with more steps even qwen will be able to solve the hardest tasks.
Anthropic will sell you opus 5 at $200 a month.
Openai will sell you gpt-5.6 at $200 a month. neither will tell you one setting stops your agent from touching what it shouldn't and drops the bill to $10 i typed "tidy up the repo" into opus 5 with 41 mcp tools and no sandbox.
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