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Claude Sonnet 3.7

Claude Sonnet 3.7 is an AI model made by Anthropic. Anthropic released it on 24 February 2025. It takes text, image and returns text.

Anthropic

Claude Sonnet 3.7 is an AI model made by Anthropic. Anthropic released it on 24 February 2025. It takes text, image and returns text. Through the API it costs $3.00 per 1M tokens for input and $15.00 per 1M tokens for output. Its knowledge cutoff is October 2024.

Released
24 February 2025 — www.anthropic.com, read 16 October 2026
Status
Not confirmed: two readings disagree: retired and deprecated
Takes
Text, Image — www.anthropic.com, read 16 October 2026
Returns
Text — www.anthropic.com, read 16 October 2026
Open weights
Not confirmed: The maker’s pages reviewed do not state whether Claude 3.7 Sonnet’s weights are open or downloadable.
Licence
Not confirmed: The maker’s pages reviewed do not name a licence for Claude 3.7 Sonnet.
Context window
Not confirmed: The maker’s pages reviewed do not print the model’s standard context-window limit.
Longest answer
Not confirmed: The maker’s pages reviewed do not print the model’s standard maximum-output limit.
Knowledge cutoff
October 2024 — www.anthropic.com, read 16 October 2026
API price, input
$3.00 per 1M tokens — docs.anthropic.com, read 16 October 2026
API price, output
$15.00 per 1M tokens — docs.anthropic.com, read 16 October 2026
Where
API, Consumer app, Cloud marketplaces — www.anthropic.com, read 16 October 2026
Parameters
Not confirmed: The maker’s pages reviewed do not publish a parameter count for Claude 3.7 Sonnet.
Model card
Not confirmed: two readings disagree: https://assets.anthropic.com/m/785e231869ea8b3b/ and https://www.anthropic.com/claude-3-7-sonnet-system-card

Benchmarks

Measured by others, not by the maker: each score with the name the measurer gives the model and the setting it ran, its day and its licence.

Arena

Arena’s leaderboard dataset (lmarena-ai/leaderboard-dataset on Hugging Face), CC BY 4.0: ratings from people’s votes between two anonymous models, as Arena publishes them. Data · CC BY 4.0

Epoch AI

Epoch AI, ‘Capabilities & benchmarking’, epoch.ai/benchmarks, CC BY 4.0: Epoch AI’s own runs and its Capabilities Index. Data · CC BY 4.0

Questions

When was Claude Sonnet 3.7 released?

Anthropic released Claude Sonnet 3.7 on 24 February 2025.

How much does the Claude Sonnet 3.7 API cost?

On the standard tier, Claude Sonnet 3.7 costs $3.00 per 1M tokens for input and $15.00 per 1M tokens for output, as Anthropic lists it.

What does Claude Sonnet 3.7 take and return?

Claude Sonnet 3.7 takes text, image and returns text.

What is the knowledge cutoff of Claude Sonnet 3.7?

The knowledge cutoff of Claude Sonnet 3.7 is October 2024.

More from Anthropic

Sources

  1. Claude 3.7 Sonnet System Card (read 16 October 2026)
  2. Anthropic’s Transparency Hub (read 16 October 2026)
  3. Claude 3.7 Sonnet and Claude Code (read 16 October 2026)
  4. Model deprecations (read 16 October 2026)
  5. Pricing (read 16 October 2026)

All of the Model Tracker