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AI models are increasingly taking on work that extends far beyond a single prompt: building a feature across a codebase, investigating a complex issue, synthesizing hundreds of pages of information, or working through a multi-step business process.
Microsoft published a model update. If you use a hosted chat, read the source before you assume your usual model changed.
Claude Opus 5.5 is on the cloud board. List cost is $4 in and $20 out per million tokens.
Try Claude Opus 5.5. Copy the OpenRouter call.
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"anthropic/claude-opus-5.5","messages":[{"role":"user","content":"Hello"}]}'Published 2026-09-22T17:00:25.000Z. FitStack shortens the story so you can decide. The source owns the detail.