Anthropic

Claude Sonnet 5.5

Fast Claude model for everyday coding, agents, and knowledge work

anthropic/claude-sonnet-5-5

Context

1M

Output

128K

Released

2026-09-28

Knowledge cutoff

2026-06

Types

InputTextImagePDF
OutputText

Reasoning

Supported

Tool use

Supported

Structured output

—

Attachments

Supported

Open weights

—

Provider pricing

Aixy
InTextImagePDF
OutText
Price
$2.00 / $10.00
Context
1M
Status
Stable
CrossModel
InTextImage
OutText
Price
$2.00 / $10.00
Context
1M
Status
Stable
Eden AI
InTextImagePDF
OutText
Price
$2.00 / $10.00
Context
1M
Status
Stable
LLM Gateway
InTextImagePDF
OutText
Price
$2.00 / $10.00
Context
1M
Status
Stable
Merge Gateway
InTextImagePDF
OutText
Price
$2.00 / $10.00
Context
1M
Status
Stable
NEAR AI Cloud
InTextImagePDF
OutText
Price
$2.00 / $10.00
Context
1M
Status
Stable

Benchmarks

  • Terminal-Bench

    70.6 · score

  • FrontierCode

    46.2 · score

  • CursorBench

    55.5 · score

  • GDPval-AA

    1844 · Elo

  • Humanity's Last Exam

    64.5 · score

  • OSWorld

    80.1 · partial score

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