Claude Sonnet 4.6 vs Claude 3.7 Sonnet: token pricing & cost compared (July 2026)

How Claude Sonnet 4.6 (Anthropic) and Claude 3.7 Sonnet (Anthropic) actually compare on price — input, output, and total monthly cost at the MAU you care about. Updated against live OpenRouter pricing.

Anthropic

Claude Sonnet 4.6

Input: $3.00 / 1M tokens
Output: $15.00 / 1M tokens
Output / Input ratio: 5.0×
Context window: 1,000K

Anthropic

Claude 3.7 Sonnet

Input: $0.00 / 1M tokens
Output: $0.00 / 1M tokens
Output / Input ratio: —
Context window: —

The short answer

Claude 3.7 Sonnet is cheaper across the board for typical workloads.

Token pricing side-by-side

Claude Sonnet 4.6
Claude 3.7 Sonnet

Cost at your usage

Avg input tokens / call

Avg output tokens / call

Calls per active user / day: 5

Active days / month: 20

MAU: 1,000

Claude Sonnet 4.6

Per call

$0.00900

Per user / mo

$0.9000

Total / mo

$900

Claude 3.7 Sonnet

Per call

$0.00000

Per user / mo

$0.0000

Total / mo

Claude 3.7 Sonnet is cheaper by $0.9000/user/month — a saving of $900/month at 1,000 MAU.

Total monthly bill across MAU

Claude Sonnet 4.6
Claude 3.7 Sonnet

Same usage profile applied to both models; only the per-token price differs.

Run this against your real numbers

The mini-calculator above is a preview. Use the full tools to model power-user blast radius, gross margin, and 12-month spend forecasts.

Other comparisons

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Comparing Claude Sonnet 4.6 vs Claude 3.7 Sonnet on price alone never tells the whole story — output-token weighting, context length, and your usage profile change the answer dramatically. Use the calculators below for the full picture.