Anthropic

Claude Sonnet 5 — Benchmark Scores, Pricing & Performance Analysis

Input Cost
$2.0/1M
Output Cost
$10.0/1M
Context Window
1.0M
Max Output
128K
Knowledge Cutoff
Jan 2026
Accepts
text, image, pdf

Claude Sonnet 5 is an AI model by Anthropic. View detailed benchmark scores, pricing data, and performance metrics on Serenities AI Models.

Specifications last checked against the provider on . Benchmark scores carry their own source, linked beside each number.

General Benchmarks

AA Intelligence Index
38.419th of 66

Artificial Analysis composite intelligence score across 10 sub-benchmarks

Artificial Analysis (via OpenRouter)

Coding Benchmarks

Design Arena ELO
127222nd of 120

Human preference ELO for building things — websites, UI, games, charts, SVG

Design Arena (via OpenRouter)
AA Coding Index
71.518th of 96

Artificial Analysis composite coding score

Artificial Analysis (via OpenRouter)
Website Arena ELO
128917th of 108

Human preference ELO for building a working web page from a brief

Design Arena (via OpenRouter)

Reasoning Benchmarks

AA Agentic Index
44.311th of 70

Artificial Analysis composite score for multi-step tool-using tasks

Artificial Analysis (via OpenRouter)
GPQA Diamond
81.4%57th of 140

Graduate-level science Q&A by domain experts

Papers
τ²-Bench Airline
76.7%14th of 93

Multi-turn service agent making tool calls under strict policy constraints

OpenRouter (measured)

Cost Benchmarks

Input Cost
$2.0336th of 413

Cost per 1M input tokens

OpenRouter API
Output Cost
$10.0335th of 413

Cost per 1M output tokens

OpenRouter API
Cached Input Cost
$0.2093rd of 136

Cost per 1M cached input tokens — the price that actually applies to a long agent conversation

OpenRouter API

Context Benchmarks

Context Length
1.0M52nd of 451

Maximum context window size

OpenRouter API

Available from 35 providers

The same model costs different amounts depending on who serves it. You can bring your own key for 6 of these — connect it here.

ProviderInput / 1MOutput / 1MCached inContextYour key
Kenari$0$01.0M
UnoRouter$1.44$7.21.0M
302.AI$2$101.0M
AIHubMix$2$10$0.21.0M
Amazon Bedrock$2$10$0.21.0MSupported
Anthropic$2$10$0.21.0MSupported
Azure$2$10$0.21.0MSupported
Azure Cognitive Services$2$10$0.21.0M
Cloudflare AI Gateway$2$10$0.21.0M
CrossModel$2$10$0.21.0M
DevPass (LLM Gateway)$2$10$0.21.0M
Eden AI$2$10$0.21.0M
GitHub Copilot$2$10$0.21.0M
Impossibl$2$10$0.21.0M
Kilo Gateway$2$10$0.21.0M
LLM Gateway$2$10$0.21.0M
NanoGPT$2$10$0.21.0M
Neon$2$10$0.21.0M
Ofox$2$10$0.21.0M
OpenCode Zen$2$10$0.21.0M
OpenRouter$2$10$0.21.0MSupported
Opper$2$10$0.21.0M
OrcaRouter$2$10$0.21.0M
Pioneer$2$10$0.21.0M
Requesty$2$10$0.21.0M
Vercel AI Gateway$2$10$0.21.0MSupported
Vertex$2$10$0.21.0MSupported
Vertex (Anthropic)$2$10$0.21.0M
ZenMux$2$10$0.21.0M
Cortecs$2.2$11$0.2191.0M
Abacus$3$151.0M
Merge Gateway$3$15$0.21.0M
Venice AI$3$15$0.31.0M
Model Oracle AI1.0M
Snowflake Cortex1.0M

Claude Sonnet 5 — Benchmark Scores Overview

Scores normalized to percentage scale for visual comparison. ELO scores mapped to 0-100 range (1100-1500).

Claude Sonnet 5 — Frequently Asked Questions

How much does Claude Sonnet 5 cost?

Claude Sonnet 5 costs $2.0 per 1M input tokens and $10.0 per 1M output tokens. This is mid-range pricing for its capability level.

What is the context window of Claude Sonnet 5?

Claude Sonnet 5 has a context window of 1.0M tokens. This determines how much text, conversation history, and code the model can process in a single request.

Who created Claude Sonnet 5?

Claude Sonnet 5 was created by Anthropic. It is classified as a mid model in our catalogue.

Is Claude Sonnet 5 open source?

No, Claude Sonnet 5 is a proprietary model. It is available through Anthropic's API and compatible providers.