# Claude Sonnet 4.6 API pricing Claude Sonnet 4.6 is an earlier Anthropic model, still sold. It costs $3 per million tokens it reads and $15 per million it writes, $6 on a mix of 3 read for each 1 written. Anthropic's newest models are Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5.5 and Claude Haiku 5.5. Below are every price Anthropic lists for it, and what 8 everyday jobs cost a month on it. - Page: https://tecyfy.com/prices/claude-sonnet-4-6 - Maker: Anthropic ## Price per million tokens, in US dollars | | Price | | --- | --: | | Input | $3 | | Cached input | $0.30 | | Cache write | $3.75 | | Output | $15 | | Blend, 3 read for each 1 written | $6 | | Batch input | $1.50 | | Batch output | $7.50 | | Context window, tokens | 1M | | Longest answer, tokens | 128K | | Capability score (Epoch Capabilities Index; GPT-5 is 150) | 152 | Price change: The 1 million token window became generally available at the standard price, so a long prompt no longer costs more per token. ## What 8 everyday jobs cost a month Each job at its usual runs a day, for 30 days, at the standard price. | Job | Tokens in, out, runs a day | A run | A month | | --- | --- | --: | --: | | A chat question | 300, 500, 100 | 0.84 cents | $25.20 | | A hard question, with thinking | 300, 1,400, 100 | 2.2 cents | $65.70 | | A long report, summarised | 60,000, 2,000, 20 | 21 cents | $126 | | A 40-turn agent task | 2,800,000, 40,000, 10 | $2.20 | $659 | | A support bot's reply | 4,000, 300, 2,000 | 1.1 cents | $666 | | Sort a message into a category | 250, 5, 50,000 | 0.083 cents | $1,238 | | Read an invoice into fields | 1,500, 250, 1,000 | 0.83 cents | $248 | | Review a pull request | 25,000, 4,500, 50 | 14 cents | $214 | ## Cheaper models that score as well as Claude Sonnet 4.6 - [Claude Haiku 5.5](https://tecyfy.com/prices/claude-haiku-5-5.md), Anthropic: $0.20 per million at 3:1, score 159 - [GPT-6 Luna](https://tecyfy.com/prices/gpt-6-luna.md), OpenAI: $0.20 per million at 3:1, score 156 - [DeepSeek V4.1 Flash](https://tecyfy.com/prices/deepseek-flash.md), DeepSeek: $0.525 per million at 3:1, score 156 - [Gemini 3.8 Flash](https://tecyfy.com/prices/gemini-3-8-flash.md), Google: $1.50 per million at 3:1, score 157 ## Questions ### How much does Claude Sonnet 4.6 cost? Claude Sonnet 4.6 costs $3 per million input tokens, the text it reads, and $15 per million output tokens, the text it writes, thinking included. On a mix of 3 tokens read for each 1 written, that is $6 per million. ### How much does cached input cost on Claude Sonnet 4.6? Text Claude Sonnet 4.6 reads again from the cache costs $0.30 per million tokens, against $3 the first time. Putting text in the cache costs $3.75 per million, so a long prompt sent again and again costs far less after the first time. ### Does Claude Sonnet 4.6 have a batch price? Yes. With a batch, where you send many requests and collect the answers later instead of at once, Claude Sonnet 4.6 costs $1.50 per million tokens read and $7.50 per million written. ### What is the context window of Claude Sonnet 4.6? Claude Sonnet 4.6 holds 1M tokens at once, about 1,500 pages of English text, and writes up to 128K tokens in one answer. The window holds your instructions, the files you attach, the conversation so far and the answer. ### How good is Claude Sonnet 4.6? Claude Sonnet 4.6 scores 152 on the Epoch Capabilities Index, an independent score from Epoch AI that combines over 50 benchmarks, with a range of doubt from 150 to 155 (GPT-5 is 150). One score is an average; test it on 10 tasks of your own. ### Is there a cheaper model as good as Claude Sonnet 4.6? Claude Haiku 5.5 from Anthropic scores 159 on the Epoch Capabilities Index, about as well or better, and costs $0.20 per million on a mix of 3 tokens read for each 1 written: Claude Sonnet 4.6 costs 30 times as much. Test both on your own work before you switch. ### Should I still use Claude Sonnet 4.6? It is still sold, so it keeps working, but Anthropic's newest models are Claude Fable 5.1, Claude Opus 5.5, Claude Sonnet 5.5 and Claude Haiku 5.5. Compare its price with theirs below, and run your own tasks on the newer model before you move. ### What does a support bot cost a month on Claude Sonnet 4.6? At 2,000 replies a day, each reading 4,000 tokens (50 percent of them from cache) and writing 300, a support bot costs 1.1 cents a reply on Claude Sonnet 4.6, $666 a month. ### What does an AI agent task cost on Claude Sonnet 4.6? One 40-turn task that reads 2,800,000 tokens in all, 90 percent of them from cache, and writes 40,000, costs $2.20 on Claude Sonnet 4.6. At 10 tasks a day that is $659 a month. ## Sources - [Anthropic: API prices](https://platform.claude.com/docs/en/about-claude/pricing) - [Epoch Capabilities Index, by Epoch AI (CC BY 4.0)](https://epoch.ai/benchmarks/eci) - Every model's prices as [JSON](https://tecyfy.com/prices.json) or [CSV](https://tecyfy.com/prices.csv), free to use ## Compare - [Claude Fable 5.1 vs Claude Sonnet 4.6](https://tecyfy.com/prices/compare/claude-fable-5-1-vs-claude-sonnet-4-6.md) - [Claude Opus 5.5 vs Claude Sonnet 4.6](https://tecyfy.com/prices/compare/claude-opus-5-5-vs-claude-sonnet-4-6.md) - [Claude Sonnet 4.6 vs Claude Sonnet 5.5](https://tecyfy.com/prices/compare/claude-sonnet-4-6-vs-claude-sonnet-5-5.md) - [Claude Haiku 5.5 vs Claude Sonnet 4.6](https://tecyfy.com/prices/compare/claude-haiku-5-5-vs-claude-sonnet-4-6.md) ## Anthropic's other models - [Claude Fable 5.1](https://tecyfy.com/prices/claude-fable-5-1.md) - [Claude Opus 5.5](https://tecyfy.com/prices/claude-opus-5-5.md) - [Claude Sonnet 5.5](https://tecyfy.com/prices/claude-sonnet-5-5.md) - [Claude Haiku 5.5](https://tecyfy.com/prices/claude-haiku-5-5.md) - [Claude Mythos 5.1](https://tecyfy.com/prices/claude-mythos-5-1.md) - [Claude Fable 5](https://tecyfy.com/prices/claude-fable-5.md) - [Claude Mythos 5](https://tecyfy.com/prices/claude-mythos-5.md) - [Claude Opus 5](https://tecyfy.com/prices/claude-opus-5.md) - [Claude Opus 4.8](https://tecyfy.com/prices/claude-opus-4-8.md) - [Claude Opus 4.7](https://tecyfy.com/prices/claude-opus-4-7.md) - [Claude Opus 4.6](https://tecyfy.com/prices/claude-opus-4-6.md) - [Claude Opus 4.5](https://tecyfy.com/prices/claude-opus-4-5.md) - [Claude Sonnet 5](https://tecyfy.com/prices/claude-sonnet-5.md) - [Claude Sonnet 4.5](https://tecyfy.com/prices/claude-sonnet-4-5.md) - [Claude Haiku 4.5](https://tecyfy.com/prices/claude-haiku-4-5.md)