Hands-on: Sonnet 5.5 matches Opus in writing at half the token price
Anthropic's new Sonnet 5.5 delivers an Opus-level upgrade, matching or beating the flagship in writing tests by Dan Shipper and Every's team. It costs half the tokens, though high effort mode consumes tokens quickly.
2026-09-29 ~ 2026-09-29 · 2 related posts
- Episode 1: Rumor: Claude Sonnet 5.5 Scores 56 on Intelligence Index, Nearing Opus 5.5(2026-09-29, 3 posts)
- Episode 2: Sonnet 5.5 Nearly Matches Opus 5.5 but Sets Token Consumption Record(2026-09-29, 12 posts)
- Episode 3: Hands-on: Sonnet 5.5 matches Opus in writing at half the token price(2026-09-29, 2 posts)
- Sonnet 5.5 Ships With Opus-Level Writing Gains, But Mid-Tier Models May Be Dying — every · 2026-09-29
- Every team tests Sonnet 5.5: half Opus's token price, matches it on writing readability — kieranklaassen · 2026-09-29