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Claude Sonnet 4.6 pricing and routing profile

Claude Sonnet 4.6 from Anthropic lists at $3.00 per million input tokens and $15.00 per million output tokens, with a 1,000,000-token context window. Prices from OpenRouter's catalogue on 2026-09-28.

Input, per 1M tokens$3.00
Output, per 1M tokens$15.00
Cached input, per 1M$0.30
Context window1M
Confidence signalNot exposed

Tool callingStructured outputReasoning control

Cost per 1,000 requests

Request shapeList cost
Classification or routing (600 tokens in, 10 out)$1.95
Chat reply (2,000 in, 400 out)$12.00
Retrieval-augmented answer (8,000 in, 500 out)$31.50

Before prompt caching. Try your own shape in the cost calculator.

Can Gimbix route to it first?

Not as a first-answer model through OpenRouter: no host returns token log probabilities for Claude Sonnet 4.6. It can still be the model Gimbix falls back to when a cheaper model is unsure.

Cheaper models that can answer first

Models priced below Claude Sonnet 4.6 that expose a confidence signal. Whether they answer your traffic as well is what a Gimbix pilot measures.

ModelInput / output per 1MCheaper on a chat reply
GLM 5.3 Prime$2.80 / $8.8024%
GPT Audio$2.50 / $10.0025%
GPT-4o (2024-11-20)$2.50 / $10.0025%
GPT-4o (2024-08-06)$2.50 / $10.0025%
GPT-4o$2.50 / $10.0025%
Qwen3.8 Max (0902)$2.00 / $6.0047%

Questions

How much does Claude Sonnet 4.6 cost?

Claude Sonnet 4.6 lists at $3.00 per million input tokens and $15.00 per million output tokens on OpenRouter as of 2026-09-28. A typical chat reply of 2,000 input and 400 output tokens costs about $12.00 per 1,000 requests.

What is the context window of Claude Sonnet 4.6?

1,000,000 tokens.

Can a cheaper model replace Claude Sonnet 4.6?

Sometimes. Gimbix proves it on your own traffic before routing: the cheaper model must match Claude Sonnet 4.6 on one half of your requests and make at most three answers worse on the other.