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Claude Sonnet 4.5

AnthropicClaudeProprietary

Description

Claude Sonnet 4.5 is the best coding model in the world. It's the strongest model for building complex agents. It’s the best model at using computers. And it shows substantial gains in reasoning and math. Highest intelligence across most tasks with exceptional agent and coding capabilities.

Release Date
2025-09-29
Parameters
Context Length
200K
Modalities
audio, image, pdf, text, video

Capability Radar

80
general
50
coding
90
reasoning
68
scienceest.
80
agents
70
multimodal

Science uses a reasoning proxy when dedicated science benchmarks are unavailable.

Rankings

Domain#RankScoreSource
Agentic Capability54
56.0
LS

Benchmark Scores (LLM Stats)

Agents

OSWorld61.4%SR
Terminal-Bench50.0%SR

Biology

GPQA83.4%SR

Code

SWE-bench Verified (Agentic Coding)77.2%SR

Communication

TAU-bench Retail86.2%SR
TAU-bench Airline70.0%SR

General

MMMLU89.1%SR
MMMUval77.8%SR

Math

AIME 202587.0%SR

AA Evaluation Indices

No AA evaluation data available

LLM Stats Category Scores

Language
90
Math
90
Physics
80
Reasoning
80
General
80
Healthcare
80
Biology
80
Chemistry
80
Communication
80
Tool Calling
80
Multimodal
70
Vision
70
Agents
60
Long Context
50
Code
50

Pricing

Input Price$0 / 1M tokens
Output Price$0.00002 / 1M tokens
Blended Price (3:1)$0.00001 / 1M tokens
Cache Read Price$0.3 / 1M tokens
Cache Write Price$3.75 / 1M tokens

Speed

No speed data available

Provider Price Ranking

Provider Price Ranking

27 providers

Cheapest: AnthropicMost Expensive: Venice AI
ProviderInputOutput
1AnthropicPRIMARY
$0
$0.00002
2QiHang
$0.43
$2.14
3Poe
$2.6
$13
4Jiekou.AI
$2.7
$13.5
5NanoGPT
$2.992
$14.994
6302.AI
$3
$15
7Abacus
$3
$15
8Perplexity Agent
$3
$15
9OpenRouter
$3
$15
10ZenMux
$3
$15
11Kilo Gateway
$3
$15
12Cloudflare AI Gateway
$3
$15
13GitHub Copilot
$3
$15
14OpenCode Zen
$3
$15
15Helicone
$3
$15
16Azure Cognitive Services
$3
$15
17Vertex (Anthropic)
$3
$15
18Requesty
$3
$15
19Vercel AI Gateway
$3
$15
20LLM Gateway
$3
$15
21Vertex
$3
$15
22Azure
$3
$15
23NEAR AI Cloud
$3
$15.5
24OrcaRouter
$3
$15
25Merge Gateway
$3
$15
26Neon
$3
$15
27Venice AI
$3.75
$18.75

Compare pricing across different API providers for this model.

External Sources