Claude Sonnet 4.5 is Anthropic's language model with a 1.0M context window and up to 64K output tokens, available from 10 providers, starting at $3.00 / 1M input and $15.00 / 1M output. A versatile Claude 4.5 model with strong reasoning, vision, and tool-use capabilities suited for a broad range of tasks.
Specifications
Canonical IDanthropic-claude-4-5-sonnet
TypeLanguage
StatusActive
CreatorAnthropicAnthropic
Providers
Context Window1.0M tokens
Max Output64K tokens
Input ModalitiesImagePdfText
Output ModalitiesText
Reasoning Effortsdefault
Tool Use Overhead346 tokens
Release Date · 8 months ago
Knowledge Cutoff
Training Data Cutoff
Benchmarks
Intelligence Index
37.1
#88
Coding Index
33.5
#82
Math Index
37.0
#161
MMLU-Pro
0.9
#19
GPQA
0.7
#160
HLE
0.1
#187
LiveCodeBench
0.6
#111
IFBench
0.4
#195
Time to First Token
1.44s
#385
SciCode
0.4
#53
AIME 2025
0.4
#161
LCR
0.5
#130
TerminalBench Hard
0.3
#89
TAU2
0.7
#124
Output TPS
46.2
#216

Capabilities

Input3/5
Text
Image
Audio·
Video·
PDF
Output1/5
Text
Image·
Audio·
Video·
Embedding·
Capabilities9/13
Reasoning
Adaptive Reasoning·
Function Calling
Parallel Function Calling
Structured Outputs
Native JSON Schema
Web Search
URL Context·
Computer Use
Code Execution·
File Search·
Prompt Caching
Assistant Prefill

Pricing by Provider

ProviderStandardBatchLong context
Input
$ / 1M
Output
$ / 1M
Cache Read
$ / 1M
Web Search
$ / query
Input
$ / 1M
Output
$ / 1M
Input
$ / 1M
Output
$ / 1M
Databricks logo
Databricks
databricks/databricks-claude-sonnet-4-5
$3.00$15.00N/AN/A
Anthropic logo
Anthropic
claude-sonnet-4-5
$3.00$15.00$0.300N/A$1.50$7.50
Azure AI Foundry logo
Azure AI Foundry
azure_ai/claude-sonnet-4-5
$3.00$15.00$0.300N/A
GMI Cloud logo
GMI Cloud
gmi/anthropic/claude-sonnet-4.5
$3.00$15.00N/AN/A
Google Vertex AI logo
Google Vertex AI
vertex_ai/claude-sonnet-4-5@20250929
$3.00$15.00$0.300N/A$1.50$7.50
OpenRouter logo
OpenRouter
anthropic/claude-sonnet-4.5
$3.00$15.00$0.300$0.010
Replicate logo
Replicate
replicate/anthropic/claude-4.5-sonnet
$3.00$15.00N/AN/A
Vercel AI Gateway logo
Vercel AI Gateway
anthropic/claude-sonnet-4.5
$3.00$15.00$0.300N/A
Amazon Bedrock logo
Amazon Bedrock
global.anthropic.claude-sonnet-4-5-20250929-v1:0
$3.30$16.50$0.330N/A$1.50$7.50
Snowflake logo
Snowflake
claude-sonnet-4-5
$3.30$16.50N/AN/A$1.65$8.25$6.60$24.76

Cost Calculator

Preset:

Versions

VersionReleasedContextInput / 1MOutput / 1MStatus
Claude Sonnet 4.61.0M$3.00$15.00Available
Claude Sonnet 4.51.0M$3.00$15.00Current
Claude Sonnet 41.0M$3.00$15.00Deprecated
Claude Sonnet 4.6 AdaptiveAvailable
Claude Sonnet 4.5Available
Claude Sonnet 4.6 Non-Reasoning Low EffortAvailable
Claude Sonnet 4Available
Claude Sonnet 4.1200K$3.00$15.00Available
Claude Sonnet 3.7200KAvailable
Claude Sonnet 3.7200K$3.00$15.00Deprecated
Claude Sonnet 3.5 V2200K$3.00$15.00Deprecating

Other models

ModelTierReleasedContextInput / 1MOutput / 1M
Claude Opus 4.7 FastOpus1.0M$30.00$150.00
Claude Opus 4.7Opus1.0M$5.00$25.00
Claude Opus 4.6Opus1.0M$5.00$25.00
Claude Opus 4.5Opus410K$5.00$25.00
Claude Haiku 4.5Haiku200K$1.00$5.00
Claude Opus 4.1Opus200K$15.00$75.00
Claude Opus 4Opus410K$15.00$75.00
Claude Opus 4.6 AdaptiveOpus
Claude Opus 4.5Opus
Claude Opus 4.1Opus

Model IDs