Sonnet 4.6
4 mentions across all digests
Sonnet 4.6 is an Anthropic Claude model with a generally available 1M token context window, noted for strong ARC-AGI-2 benchmark performance and widely used in agentic coding tools.
1M context is now generally available for Opus 4.6 and Sonnet 4.6
Claude Opus 4.6 and Sonnet 4.6 now support 1M token context windows, enabling developers to process massive documents and codebases in a single API call without batching.
Anthropic admits it dumbed down Claude when trying to make it smarter
Anthropic traced March-April Claude degradation to three engineering mishaps (reduced reasoning effort, cache bugs, overaggressive safety filtering) and has now remedied all three.
An update on recent Claude Code quality reports
Anthropic debugged and fixed three independent Claude Code quality regressions (March 4 reasoning-effort change, March 26 session idling bug, April 16 verbosity instruction) by v2.1.116, leaving API/inference unaffected.
LWiAI Podcast #235 - Sonnet 4.6, Deep-thinking tokens, Anthropic vs Pentagon
Sonnet 4.6's 1M context and deep-thinking reasoning tokens reflect accelerating capabilities across Claude, Gemini, and Grok, but Anthropic's Pentagon contract tensions signal growing regulatory friction in the AI arms race.