Anthropic API pricing
Prices per million tokens for the 4 Anthropic models we track, with context windows and what a typical task costs. The cheapest is Claude Haiku 5.5 at $0.100 input and $0.500 output per million tokens; the largest context window is Claude Haiku 5.5's 1M tokens. Updated 25 Oct 2026.
| Model | Input / 1M | Output / 1M | Context | Tools | Reasoning |
|---|---|---|---|---|---|
| Claude Haiku 5.5 | $0.100 | $0.500 | 1M | Yes | Yes |
| Claude Sonnet 5.5 | $2.00 | $10.00 | 1M | Yes | Yes |
| Claude Opus 5.5 | $4.00 | $20.00 | 1M | Yes | Yes |
| Claude Fable 5.1 | $10.00 | $50.00 | 1M | Yes | Yes |
What Anthropic models cost per task
Using the listed prices, for three common jobs: a chat turn (2,000 tokens in, 500 out), summarising a 100,000-token document into 2,000 tokens, and a long agent run (1 million in, 50,000 out).
- Claude Haiku 5.5: chat turn $0.0004, document $0.011, agent run $0.125
- Claude Sonnet 5.5: chat turn $0.0090, document $0.220, agent run $2.50
- Claude Opus 5.5: chat turn $0.018, document $0.440, agent run $5.00
- Claude Fable 5.1: chat turn $0.045, document $1.10, agent run $12.50
How Anthropic compares with other providers
Across all 40 models we track, the cheapest Anthropic model ranks #7 by output price. For a model-by-model comparison, see the full price table or the guide to choosing an LLM.
Other providers: OpenAI pricing · Google pricing · Meta pricing · DeepSeek pricing · Mistral AI pricing · Qwen (Alibaba) pricing · xAI pricing · Moonshot AI pricing · Z.ai pricing
Anthropic in the news
- Claude Haiku 5.5 lands: 90% cheaper per token, way smarter 7 Oct 2026
- Anthropic's Claude Sonnet 5.5 Delivers a 7x Leap in Agentic Coding October 6, 2026
- Anthropic Releases Claude Sonnet 5.5: Mid-Tier Speed, Frontier Agent Coding October 1, 2026
- Claude Sonnet 5.5 Arrives: Terminal-Bench at 70.6% and a Massive Free-Tier Upgrade September 29, 2026
- Claude Opus 5.5 lands: Fable-level coding at 40% lower cost 22 Sept 2026
- GPT-6 Astra takes WebDev Arena #1, 35 points over Fable 5.1 7 Sept 2026
Prices and limits come from OpenRouter's public model catalogue, last synced 25 Oct 2026. Anthropic's own API pricing can differ and changes often; confirm on its pricing page before you commit.
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