◉CLAUDE LABJP
●2.1.301 — Adds the vim % motion, LaTeX math rendering in the VS Code panel, and a retry-watchdog limit for usage-limit waits (10/15)●2.1.299 — Conversations over 200K tokens left idle about 54 minutes get compacted; MCP allow rules now match only the server they name●SONNET 4.5 — Retires on the Claude API on 11/30, 45 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●FAST MODE — Opus 5.5 fast mode is out of research preview and no longer needs the beta header (10/15)●NEW — I Put a Ten-Line Promise File at the To…●2.1.301 — Adds the vim % motion, LaTeX math rendering in the VS Code panel, and a retry-watchdog limit for usage-limit waits (10/15)●2.1.299 — Conversations over 200K tokens left idle about 54 minutes get compacted; MCP allow rules now match only the server they name●SONNET 4.5 — Retires on the Claude API on 11/30, 45 days left. Migrate to Sonnet 5.5●WINDOWS — Reports say hooks break silently only on Japanese-locale Windows; check the character encoding first●FAST MODE — Opus 5.5 fast mode is out of research preview and no longer needs the beta header (10/15)●NEW — I Put a Ten-Line Promise File at the To…
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Claude Opus 4.6 Released — The New Flagship Model

Claude Opus 4.6new modelreleaseAnthropic

Claude Opus 4.6 Arrives

Anthropic has released its latest flagship model, Claude Opus 4.6, positioned as the most intelligent model for agent building and coding.

Key Features

Industry-Leading Coding Performance

Claude Opus 4.6 achieves top scores on coding benchmarks, with significant improvements in complex multi-file editing, architecture design, and debugging.

Expanded Output and Context

Maximum output has been expanded to 128K tokens (up from 32K in Opus 4). A beta 1M token context window is also available.

Extended Thinking and Adaptive Thinking

In addition to Extended Thinking, a new Adaptive Thinking mode has been introduced. It automatically adjusts reasoning depth based on problem complexity without requiring budget_tokens.

API Access

The API ID is claude-opus-4-6, available on all platforms (Claude API, AWS Bedrock, Google Vertex AI).

Pricing

Input: $5 / million tokens, Output: $25 / million tokens. While more expensive than Sonnet 4.6, it may be more cost-effective for complex tasks that require fewer interactions.

Summary

Claude Opus 4.6 represents major progress especially in agent development and coding. Try it for projects demanding the highest quality.