o1 vs Claude 3.7 Sonnet: token pricing & cost compared (July 2026)

How o1 (OpenAI) 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.

OpenAI

o1

Input: $15.00 / 1M tokens
Output: $60.00 / 1M tokens
Output / Input ratio: 4.0×
Context window: 200K

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

o1
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

Per call

$0.03750

Per user / mo

$3.7500

Total / mo

$3,750

Claude 3.7 Sonnet

Per call

$0.00000

Per user / mo

$0.0000

Total / mo

Claude 3.7 Sonnet is cheaper by $3.7500/user/month — a saving of $3,750/month at 1,000 MAU.

Total monthly bill across MAU

o1
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

DeepSeek R1 vs o1 o1 vs o3 o1 vs GPT-4o Claude Sonnet 4.6 vs Claude 3.7 Sonnet Claude 3.7 Sonnet vs Claude 3.5 Haiku Claude 3.7 Sonnet vs Claude Haiku 4.5

Comparing o1 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.