Pulse
What's shipping in AI right now — curated, summarised, updated through the day.
- Qwen·MODELS·1mo ago·+1 source
Qwen3.6-27B matches flagship coding performance at 27B parameters
Alibaba Cloud has released Qwen3.6-27B, a 27-billion-parameter dense model that claims flagship-level coding performance. The model reportedly matches or exceeds larger models on coding benchmarks whilst running efficiently on consumer hardware. Qwen positions this as bridging the gap between compact models and top-tier coding assistants, targeting developers who need strong code generation without enterprise-scale infrastructure. The release continues Qwen's strategy of competitive open-weight models at practical sizes. This matters because it suggests the performance ceiling for mid-sized models is rising faster than expected, potentially reshaping assumptions about the hardware needed for serious coding assistance.
- Simon Willison·MODELS·1mo ago
Claude Opus 4.7 system prompt: less verbose, more autonomous
Anthropic updated the Claude Opus system prompt between version 4.6 (February 2026) and 4.7 (April 2026). Simon Willison extracted the changes using Claude Code to build a Git history of the prompts. Key shifts: Claude now defaults to acting rather than asking clarifying questions, uses a new tool_search mechanism to check for deferred capabilities before claiming ignorance, and has explicit instructions to keep responses concise. The child safety section was expanded and wrapped in critical tags. Claude in PowerPoint joins the list of available tools. The update also removes instructions about avoiding asterisk-based emotes, suggesting the model no longer needs that guardrail. This matters because system prompt changes reveal how labs are steering model behaviour in production.
- openai·MODELS·1mo ago
OpenAI releases Codex 0.122.0-alpha.7
OpenAI has published a pre-release version of Codex tagged rust-v0.122.0-alpha.7. The GitHub release page offers minimal detail beyond the version number and 93 bundled assets. No changelog or feature notes are visible in the excerpt, making it unclear what's changed since the previous alpha. The release appears to be part of an ongoing Rust-based development track for Codex, OpenAI's code generation model. Given the alpha tag and sparse documentation, this looks like an internal or experimental build rather than a production-ready update. Developers tracking Codex's evolution may want to check the full release notes or commit history for specifics.