◉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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Cost Optimization

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Claude API14Claude Code6Prompt Caching3Sonnet 53production3streaming2indie dev2automation2Opus 4.82Model Selection2batch processing2API2
⬡ API & SDK/2026-03-30Beginner

Claude API Pricing Guide 2026 — Current Model Rates, Batch API, Prompt Caching, and How to Estimate a Monthly Bill

Claude API pricing as of October 2026, checked against the official price table: Opus 5.5, Sonnet 5.5 and Haiku 5.5 rates, Batch API and Prompt Caching discounts, the tokenizer change that shifts real bills, and worked monthly estimates.