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9 min read
Everything you need to ship Claude Fable 5 in production - from the API surface changes and adaptive thinking defaults to rate limit strategy, streaming latency, and the June 15 deprecation deadline for older models.
CLAUDE API
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Prompt Caching Economics on Fable 5: When the 5-Minute TTL Pays
Fable 5 prompt caching economics: cache-write vs cache-read pricing, 5-minute vs 1-hour TTL break-even math, and worked agent-loop examples.
•10 min read
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11 min read
How to ship Claude's Batch API in production. 50% cost savings, TypeScript SDK code, JSONL request format, and the async architecture gotchas that bite at 100k requests.
13 min read
How to ship Claude's vision API in production. OCR, charts, UI audits, real cost numbers, TypeScript SDK code, and the gotchas that bite at 100k images a month.
12 min read
A production guide to Claude's extended thinking mode. Real cost math, TypeScript SDK code, and the tasks where reasoning tokens are worth 3x the spend.
11 min read
Cut Claude API spend by up to 90% with prompt caching. Real numbers, TypeScript SDK code, and the gotchas Anthropic's docs gloss over.
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