# Fable 5 Is Back, Sonnet 5 Costs More Than You Think

> Fable 5 reopens on July 1 and Sonnet 5 is the new default. Usage, pricing, and why the cheaper sticker can still cost more.

- Author: AI Kai
- Published: 2026-07-01
- Updated: 2026-08-24
- Topic: Claude Code
- Tags: claude-code, fable-5, sonnet-5
- Canonical: https://hqman.me/blog/fable-5-sonnet-5-builder-update/

Fable 5 is back. Sonnet 5 is now the default. Here is what changes for builders.

## Fable 5 Returns

Reopens to everyone on July 1, across Claude Platform, Claude.ai, Claude Code, and Cowork.

- Through July 7, usage counts toward your weekly quota, capped at 50%, then switches to usage credits.
- Anthropic tightened its safety classifier, so expect more false positives on debugging and security requests.
- Blocked requests now fall back to Opus 4.8.

## Sonnet 5 Is the New Default

Live in Claude Code and the API, and now the default for Free and Pro.

- Launch pricing through August 31: $2/$10 per million tokens, rising to $3/$15 after.
- New tokenizer means the same input can cost 1.0-1.35x more tokens than Sonnet 4.6.

## The Catch

Theo tested it anyway. In the Artificial Analysis Intelligence Index, Sonnet 5 generated close to twice the output tokens of Opus 4.8 on the same tasks. Lower sticker price, higher real bill: its actual benchmark cost beat Opus 4.8, and in a later run, beat Fable too.

Check total token output before you assume Sonnet 5 saves you money.

**Caveat:** safety numbers are Anthropic's own testing; the cost comparison is one third-party benchmark, not a universal ranking.

**Sources:**
- Redeploying Fable 5: https://www.anthropic.com/news/redeploying-fable-5
- Claude Sonnet 5: https://www.anthropic.com/news/claude-sonnet-5

Fable 5 returns globally on July 1 US time.

My read: GPT-5.6 could go wide in the same window.

If that happens, the price OpenAI sets for GPT-5.6 against Fable 5 will matter more than which model wins the benchmark.