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  1. Models
  2. Text
  3. Anthropic

Claude Sonnet 5 Thinking

Claude Sonnet 5 with adaptive thinking enabled for complex coding, planning, and agentic work.

  • Reasoning
  • Vision
  • Native PDF input
  • Tool Calling
  • Structured Output

Added Jun 30, 2026

Pricing

Auto routing · per 1M tokens
Input
$2.00
Output
$10.00
Cache read
$0.20
Compare provider prices

Specifications

Context window
1M
Max output
128K
Avg output (7d)
934 tokens
Longer than 70% of models

Benchmarks

Sourced from Artificial Analysis.

Agentic work

AutomationBench-AA

Workflow automation with guardrail penalties

36.5%

Better than 52% of models compared

AutomationBench-AA Tasks Completed

Fully completed workflows without guardrail violations

10.8%

Better than 52% of models compared

AA-Briefcase v1.1

Agentic knowledge work (Elo)

1356 Elo

Better than 72% of models compared

GDPval-AA v2.1

Economically valuable tasks (Elo)

1471 Elo

Better than 80% of models compared

Document reasoning

GDP.pdf

Professional PDF reasoning: all-pass rate

13.2%

Better than 51% of models compared

AA-LCR v1.1

Long context reasoning with updated grading

82.0%

Better than 91% of models compared

MLCR-AA

Medical long-context reasoning

5.0%

Better than 13% of models compared

Reasoning

HLE

Humanity's Last Exam

41.3%

Better than 88% of models compared

Coding

Terminal-Bench v4.0

Practical coding and terminal tasks

14.1%

Better than 64% of models compared

SciCode

Python programming for scientific computing

54.3%

Better than 72% of models compared

Legacy benchmarks

GPQA Diamond (legacy)

Graduate-level scientific reasoning

91.1%

Better than 91% of models compared

AA-LCR (unversioned / legacy)

Long context reasoning evaluation

82.0%

Better than 91% of models compared

Last updated Oct 29, 2026

Artificial Analysis

Providers

Auto routing is available for this model. Explicit provider selection is not available.

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Reliability

Related text models

Compare Claude Sonnet 5 Thinking with similar models from the same provider or model family.

Claude Sonnet 5.5

anthropic/claude-sonnet-5.5

Claude Sonnet 5.5 handles everyday coding, tool-based workflows, visual analysis, and polished writing with a 1M-token context window. This version skips up-front thinking and can reason between tool calls for faster responses; use Thinking for deeper planning and complex problems.

Claude Sonnet 5.5 Thinking

anthropic/claude-sonnet-5.5:thinking

Claude Sonnet 5.5 with adaptive thinking for complex coding, multi-step tool use, visual analysis, and detailed planning. Supports a 1M-token context window and five reasoning effort levels, with stronger thinking available when a task needs it.

Claude Sonnet 5

anthropic/claude-sonnet-5

Claude Sonnet 5 supports coding, agentic workflows, long-context reasoning, computer use, and practical knowledge work.

Claude Sonnet Latest

anthropic/claude-sonnet-latest

Compatibility alias that routes to the newest version of Claude Sonnet. Currently routes to Claude Sonnet 5.5 Thinking.

Claude Sonnet 4.6

anthropic/claude-sonnet-4.6

Claude Sonnet 4.6 is Anthropic's most capable Sonnet yet — a full upgrade across coding, computer use, long-context reasoning, agent planning, and design. Supports up to a 1M-token context window at Sonnet pricing.

Claude Sonnet 4.6 Thinking

anthropic/claude-sonnet-4.6:thinking

Claude Sonnet 4.6 with extended thinking enabled for tougher coding, planning, and multi‑tool tasks. Ideal for long‑horizon agent workflows and complex problem solving.