Introducing Claude Opus 4.5: the best model in the world for coding, agents, and computer use.
Opus 4.5 is a step forward in what AI systems can do, and a preview of larger changes in how work gets done.
Discussion
Loading...
Post
Our engineers have found that Opus 4.5 handles ambiguity and reasons about tradeoffs without hand-holding.
When pointed at a complex, multi-system bug, it figures out the fix.
Overall, Opus 4.5 just "gets it."
We’re also releasing new product features across our model line-up.
For Claude app users, long conversations no longer hit a wall.
Claude automatically summarizes earlier context as necessary, so you can keep the chat going indefinitely.
New on the Claude Developer Platform: tool search, programmatic tool calling, and tool use examples.
Together with effort control and context compaction, these let Claude run longer and do more with less intervention.
Read more: https://www.anthropic.com/engineering/advanced-tool-use
Claude Code is now available in our desktop app.
Run multiple sessions in parallel: code, research, and update work all at once.
And Plan Mode gets an upgrade with Opus 4.5—Claude asks clarifying questions upfront, then works autonomously.
bonfire.cafe
A space for Bonfire maintainers and contributors to communicate
Automatic federation enabled