Fresh stories
SemiAnalysis releases GDPx benchmark; Opus 5.5 leads at 12%
SemiAnalysis released GDPx to evaluate agents on economically valuable tasks, with Opus 5.5 leading at 12.0%. The publisher says safety classifiers materially affect some scores, complicating model comparisons.


DeepSeek releases dsh-superagent for GitHub repository tasks
DeepSeek's dsh-superagent coordinates isolated workers through GitHub issues and pull requests. A reported internal test cut p95 task completion time from 29.5 to 15.7 minutes versus a session using subagents.

SemiAnalysis releases GDPx benchmark; Opus 5.5 leads at 12%
SemiAnalysis released GDPx to evaluate agents on economically valuable tasks, with Opus 5.5 leading at 12.0%. The publisher says safety classifiers materially affect some scores, complicating model comparisons.

Karpathy builds HackerTube from 43 million Hacker News comments
Karpathy says he built HackerTube in about two hours with Claude Code. Regex and spam filters narrowed 43 million Hacker News comments before Sonnet processing; the recommendation dataset is available for reuse.
Top storiesthis week
EdgeRock-4B fixes its attention KV cache at 72 MiB
Rock Matrix released EdgeRock-4B with a 72 MiB attention KV cache built around local attention and memory anchors. Weights, code, and quantized versions are available, along with a local laptop demonstration.


OpenCode removes two DeepSeek routes linked to upstream filter errors
OpenCode removed two low-traffic routing configurations after finding overactive upstream content filters. Its benchmarks did not explain broader quality complaints, and its GPU cluster still faces stability and capacity limits.

Pi releases pi-schema, a JSON Schema validator for runtimes that block eval
Pi released pi-schema, which compiles JSON Schema validation to closures for JavaScript runtimes that block eval. Pi-ai and pi-durable will drop their TypeBox dependency and re-exports, creating a breaking change.

Hex launches local dictation for macOS, Windows, and Linux
OpenCode released Hex, a cross-platform dictation app that uses local models. Developer replies describe optional microphone warming and planned fixes for OpenCode integration and excessive window wakeups.

Cursor removes malicious Claude Code extension affecting up to 5,000 users
Cursor says a tampered, unofficial Claude Code extension affected at most 5,000 users. The company temporarily closed its marketplace, worked with providers to neutralize the malware and published mitigation instructions.





