// anthropic

Claude Sonnet 4.6

anthropic/claude-sonnet-4.6

reasoningtool callingimage inputfile inputprompt caching
OpenRouter + LiveBenchAll modelsFull leaderboard

Claude Sonnet 4.6 costs $3.00 per 1M input tokens and $15.00 per 1M output tokens with a 1M-token context window.

A reasoning, tool-calling model from anthropic, released Feb 17, 2026. On LiveBench it scores 73.0 overall — #38 of 55 benchmarked models — and ranks highest in coding (#19).

Input / 1M
$3.00
Output / 1M
$15.00
Context
1M
LiveBench overall
73.0 · #38

Specs and pricing

Input price

USD per 1M prompt tokens

$3.00
Output price

USD per 1M completion tokens, reasoning included

$15.00
Blended price

3:1 input:output — #28 most expensive of 343 listed models

$6.00
Cached input read

Blank means not priced separately — not free

$0.300
Cache write$3.75
Context window1,000,000 tokens
Max output128,000 tokens
Input modalitiestext, image, file
Tool callingYes
Extended reasoningYes
Knowledge cutoff
ListedFeb 17, 2026
All Anthropic API pricing

Also listed as anthropic/claude-sonnet-4.6:batch ($3.00 blended)— the same model at a different price or rate limit.

Benchmarks by category

LiveBench scores out of 100, with Claude Sonnet 4.6's rank among the 55 benchmarked models listed here. Run: claude-sonnet-4-6-thinking-auto-medium-effort.

Overall#38 of 55
73.0

$0.1561 measured per point

42.6

$0.3550 measured per point

Coding#19 of 55
79.3

$0.0044 measured per point

Reasoning#30 of 55
84.8

$0.1235 measured per point

Mathematics#39 of 55
87.0

$0.2534 measured per point

Data analysis#21 of 55
77.9

$0.2093 measured per point

Language#38 of 55
76.1

$0.0401 measured per point

63.2

$0.1964 measured per point

What Claude Sonnet 4.6 costs to run

Monthly list cost across five workload shapes, using the published cached-input rate where there is one. A floor, not a quote — batch discounts and cache writes aren't included.

WorkloadPer month
Support chatbot

1.2K in / 400 out × 200K requests

$1,726/mo
RAG assistant

8K in / 600 out × 100K requests

$2,220/mo
Coding agent

40K in / 4K out × 20K requests

$2,088/mo
Document extraction

20K in / 1.5K out × 50K requests

$3,990/mo
Bulk classification

500 in / 20 out × 5M requests

$7,650/mo
Price your own workload

Compare Claude Sonnet 4.6 with

The benchmarked models closest to it on overall score.

Claude Sonnet 4.6 FAQ

How much does Claude Sonnet 4.6 cost?

Claude Sonnet 4.6 lists at $3.00 per 1M input tokens and $15.00 per 1M output tokens, with cached input reads at $0.300 per 1M. A RAG assistant handling 100K requests a month (8K tokens in, 600 out) comes to about $2,220 at list price.

What is the context window of Claude Sonnet 4.6?

Claude Sonnet 4.6 accepts up to 1,000,000 tokens of context and can return up to 128,000 output tokens per response.

Does Claude Sonnet 4.6 support tool calling?

Yes — Claude Sonnet 4.6 supports tool (function) calling and exposes extended reasoning. It accepts text, image, file input.

How does Claude Sonnet 4.6 score on benchmarks?

On LiveBench release 2026-06-25 (run: claude-sonnet-4-6-thinking-auto-medium-effort), Claude Sonnet 4.6 scores 73.0 overall, ranking #38 of 55 benchmarked models.

What is the API model ID for Claude Sonnet 4.6?

On OpenRouter the model ID is "anthropic/claude-sonnet-4.6". It was listed on Feb 17, 2026.

More from anthropic

How these numbers are produced

  • Price and specs — provider list data from OpenRouter, refreshed every 15 minutes. “Blended” is a 3:1 input:output mix.
  • Scores and ranksLiveBench release 2026-06-25. Ranks count only models that have a published run; a blank means “not evaluated”, never “bad”.
  • Cost per point — the measured dollars LiveBench spent on the run, divided by the score it earned.

Published benchmarks rank models on someone else's tasks. Before committing, see LLM & agent evaluation for building an eval on your own.