Sourcegraph demonstrated Claude Code querying code that has not been checked out locally by using Sourcegraph Deep Search. In an example task, the agent located deprecated packages across the Kubernetes codebase without exiting the Claude Code interface.
A study comparing Claude Code, mini-SWE-agent, and OpenCode with the same model on SWE-bench Verified found that minimizing harness prompts and tool schemas reduces costs by up to 3x without lowering accuracy.
Haiku 5.5 has launched across the Claude Platform and Claude Code, operating at approximately 75% lower running costs on average than Haiku 4.5. ClaudeDevs highlighted the model for use as a subagent alongside Opus 5.5 or Sonnet 5.5 for high-volume workloads.
ClaudeDevs explained that Claude Code cloud sessions run on a fresh VM for each task, allowing users to start several tasks at once that continue running after closing their laptop. The team also published a field guide detailing seven suitable workflows and initial GitHub setup.
Subscribers on Claude Pro or Max plans as of Sept 23 must run /claim-credit in Claude Code by Oct 7 at 11:59pm PT to redeem their one-time cloud session credit. The credit is consumed prior to standard plan limits and expires Nov 4.
DAIR.AI describes RankEvolve, from a Meta paper, as a protocol that runs Claude Code and Codex as separate nodes to review and repair each other’s changes. At a matched budget, execution accuracy rises from 45.8% to 62.5%, and twelve iterations improve HSTU’s NDCG@10 on MovieLens-20M by 4.48%.
ClaudeDevs says Claude Sonnet 5.5 is out and has published a guide for building with it, covering model choice against Opus 5.5, migration from Sonnet 5, and use in Claude Code.
ClaudeDevs says Claude can help build evaluations and hillclimb on them, and has published guidance on eval design and skills that Claude Code can use to improve applications.
Melissa Pan compared Claude Code, Codex, and Pi and reports that the system around an AI model, the harness, affects cost more than accuracy. She cites three findings; only this one is stated in the announcement.
ClaudeDevs says every Pro, Max, and Team user was granted a reset last Tuesday. Anyone who has not used it can still apply it at any time before Oct 22. Sonnet 5.5 is available now in the Claude Platform and Claude Code.
ClaudeDevs says Sonnet 5.5 has produced as much as 20% lower costs on the Claude Platform and 30% more usage in Claude Code. Claude calls it the second Claude 5.5 model, more than 30% faster than Sonnet 5 and up to 30% cheaper for most work.
ClaudeDevs says a single discovery experience will roll out across Claude and Claude Code over the coming weeks, and describes plugins as the main way for third-party developers to extend Claude.
During rollout, Claude Code’s wrap-up is available once a week on Pro plans and each time a 5-hour session limit is hit on Max and Team Premium plans. Users can continue past the wrap-up with extra usage.
If Claude Code hits its 5-hour limit mid-task, it tries to reach a graceful stopping point instead of cutting off mid-edit, using a small fixed allowance drawn from the weekly limit.
ClaudeDevs says Opus 5.5 costs 20% less per input and output token than Opus 5, and 60% less on cache reads. It also published a calculator for estimating Claude Code task cost from /usage.
ClaudeDevs says officially available Claude Code cloud sessions are billed on Pro or Max plans like the rest of Claude Code. Existing subscribers get an optional one-time credit of $100 on Pro or $250 on Max, which those sessions spend before normal plan usage.
ClaudeDevs has added local support to Projects in Claude Code, so threads can run on a user’s own machine. Projects were rolled out on desktop and web as conversations whose threads run in parallel cloud sessions.
Existing subscribers’ one-time Claude Code cloud-session credit ($100 on Pro or $250 on Max) applies automatically and is separate from usage limits, with one credit per account for cloud sessions only. After a local limit is reached, cloud work can continue until the credit runs out.
ClaudeDevs says cloud sessions are officially available and can keep Claude Code working while a laptop is closed. Existing subscribers get a one-time credit of $100 on Pro or $250 on Max.
ClaudeDevs says Opus 5.5 is available in Claude Code and the Claude Platform, and is using it as the new daily driver for coding and agentic work, citing its intelligence, lower price, and speed.
