ModelPriceWatch.com
Last scan 2026-09-29 Models tracked 272 Providers 35 Cheapest paid Granite 4.0 H Micro $0.017/Mtok in Every price links to its source

Anthropic price history

Every pricing change we record for Anthropic API models, newest first. Tracking began Oct 6, 2025. Prices re-verified Sep 29, 2026.

What changed

8 recorded changes · newest first · every move keeps its receipt
  1. Sep 29, 2026

    New model added: Claude Sonnet 5.5 new listing

    Claude Sonnet 5.5 began being tracked.

  2. Sep 23, 2026

    New model added: Claude Opus 5.5 new listing

    Claude Opus 5.5 began being tracked.

  3. Sep 5, 2026

    New model added: Claude Opus 4 new listing

    Claude Opus 4 began being tracked.

  4. Sep 5, 2026

    New model added: Claude Sonnet 4 new listing

    Claude Sonnet 4 began being tracked.

  5. Sep 1, 2026

    New model added: Claude Fable 5.1 new listing

    Claude Fable 5.1 began being tracked.

  6. Sep 1, 2026

    New model added: Claude Mythos 5.1 new listing

    Claude Mythos 5.1 began being tracked.

  7. Jul 25, 2026

    New model added: Claude Opus 5 new listing

    Claude Opus 5 began being tracked.

  8. Jun 30, 2026

    New model added: Claude Sonnet 5 new listing

    Claude Sonnet 5 began being tracked.

Current Anthropic prices

15 models · cheapest blended first

Per 1M tokens, cheapest blended first. "First tracked" is when this model entered our price history.

Current Anthropic model prices per 1M tokens with the date each entered our price history
Model Blended* Input Output First tracked
Claude Haiku 4.5 $2.00 $1.00 $5.00 Oct 20, 2025
Claude Sonnet 5 $4.00 $2.00 $10.00 Jun 30, 2026
Claude Sonnet 5.5 $4.00 $2.00 $10.00 Sep 29, 2026
Claude Sonnet 4.5 $6.00 $3.00 $15.00 Oct 6, 2025
Claude Sonnet 4.6 $6.00 $3.00 $15.00 Feb 23, 2026
Claude Opus 5.5 $8.00 $4.00 $20.00 Sep 23, 2026
Claude Opus 4.5 $10.00 $5.00 $25.00 Dec 8, 2025
Claude Opus 4.6 $10.00 $5.00 $25.00 Feb 9, 2026
Claude Opus 4.7 $10.00 $5.00 $25.00 Apr 20, 2026
Claude Opus 4.8 $10.00 $5.00 $25.00 Jun 1, 2026
Claude Opus 5 $10.00 $5.00 $25.00 Jul 25, 2026
Claude Fable 5 $20.00 $10.00 $50.00 Jun 17, 2026
Claude Fable 5.1 $20.00 $10.00 $50.00 Sep 1, 2026
Claude Mythos 5 $20.00 $10.00 $50.00 Jun 27, 2026
Claude Mythos 5.1 $20.00 $10.00 $50.00 Sep 1, 2026
* Blended = (3×input + 1×output) ÷ 4 $/1M tokens MODELPRICEWATCH.COM · 2026-09-29

About this log

ModelPriceWatch re-verifies Anthropic API pricing against its official pricing page on a twice-daily refresh cycle and records every change here.

Quick stats

Models tracked
15
Recorded changes
8
Tracking since
Oct 6, 2025
Last change
Sep 29, 2026