# Anthropic Holds Sonnet Pricing Flat and Sells the Token Savings Instead

Sonnet 5.5 stays at $2 and $10 per million tokens, generates output more than 30% faster, and reaches 81.3% on SWE-bench Pro against 89.9% for the costlier Opus 5.5.

- Conviction: 28 / 100 (weakening)
- 7-day move: -12
- Horizon: Emerging (watchlist)
- Tracking since: 2026-10-03T00:00:00.000Z
- Last updated: 2026-10-12T14:07:13.413Z
- Canonical: https://polylog.news/ai/trends/event-anthropic-holds-sonnet-pricing-flat-and-sells-the-token-savi
- Publisher: Polylog
- Affected regions: Global

## Recent score history

- 2026-10-11: 30
- 2026-10-12: 28

## Recent evidence

- [contradicts] Claude Haiku 5.5 Cuts Small-Model Prices to One Tenth of Haiku 4.5 and Jumps From 15.7% to 72.4% on OSWorld (2026-10-11): Days after keeping Sonnet 5.5 at $2/$10, Anthropic cut Haiku-tier pricing 10x. This shows the company is willing to pass efficiency gains through as lower list prices, not only as token savings, at least in the small-model tier.
- [contradicts] Anthropic prices Claude Haiku 5.5 at one-tenth of Haiku 4.5 and lifts its OSWorld score to 72.4% (2026-10-10): A day after keeping Sonnet 5.5 at $2 and $10 per million tokens, Anthropic cut Haiku 5.5's price by 90%. Its pricing restraint looks tier-specific rather than a company-wide strategy of selling speed and token savings instead of lower prices.

5 more evidence entries, the full score history, the conviction-driver timeline, and affected assets are for subscribers: https://polylog.news/pricing