All Models

Claude Sonnet 4.5

claude-sonnet Reasoning Tool Calling Attachments Structured Output

Balanced Claude model for coding, analysis, agent workflows, and cost control

Providers 19
Released Jan 15, 2025
Input Modalities text, image, pdf
Output Modalities text
Tarsk Use coding

Benchmarks

29.9
Intelligence Index
37
Math Index

Available Providers (19)

Provider Model ID Input Cost Output Cost Context Max Output Docs
QiHang claude-sonnet-4-5-20250929 $0.43/MTok $2.14/MTok 200K 64K
Poe anthropic/claude-sonnet-4.5 $2.60/MTok $13/MTok 983.0K 32.8K
NanoGPT claude-sonnet-4-5-20250929 $3/MTok $15/MTok 1M 64K
Vertex claude-sonnet-4-5@20250929 $3/MTok $15/MTok 200K 64K
Vertex (Anthropic) claude-sonnet-4-5@20250929 $3/MTok $15/MTok 200K 64K
Anthropic claude-sonnet-4-5-20250929 $3/MTok $15/MTok 1M 64K
Databricks databricks-claude-sonnet-4 $3/MTok $15/MTok 200K 64K
Amazon Bedrock anthropic.claude-sonnet-4-5-20250929-v1:0 $3/MTok $15/MTok 200K 64K
ZenMux anthropic/claude-sonnet-4.5 $3/MTok $15/MTok 1M 64K
Perplexity Agent anthropic/claude-sonnet-4-5 $3/MTok $15/MTok 200K 64K
Helicone claude-4.5-sonnet $3/MTok $15/MTok 200K 64K
Azure Cognitive Services claude-sonnet-4-5 $3/MTok $15/MTok 200K 64K
302.AI claude-sonnet-4-5 $3/MTok $15/MTok 200K 64K
OpenCode Zen claude-sonnet-4-5 $3/MTok $15/MTok 1M 64K
Azure claude-sonnet-4-5 $3/MTok $15/MTok 200K 64K
Vercel AI Gateway anthropic/claude-sonnet-4.5 $3/MTok $15/MTok 1M 64K
DevPass (LLM Gateway) claude-sonnet-4-5-20250929 $3/MTok $15/MTok 200K 64K
Abacus claude-sonnet-4-5-20250929 $3/MTok $15/MTok 200K 64K
Venice AI claude-sonnet-4-5 $3.75/MTok $18.75/MTok 198K 64K

Capabilities

Reasoning
Tool Calling
Attachments
Open Weights
Structured Output