anthropicListed Sep 29, 2025

Anthropic: Claude Sonnet 4.5

Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...

Context window1M
Max output64K
Provider endpoints9
Benchmark results0
Measured performance

Benchmark results

All leaderboards ↗
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No published results in this index yet

Scores appear here when an evaluation matches this exact model.

Access & cost

Prices across providers

15 quotes

Your token mix

USD · listed token rates

ExperientialStandard list rate
$6.75
Claude Platform on AWS · via OpenRouterclaude-on-aws · prompt ≤ 200000 tokens
$6.75
$6.75
Amazon Bedrock · via OpenRouteramazon-bedrock · prompt ≤ 200000 tokens
$6.75
Anthropic · via OpenRouteranthropic · prompt ≤ 200000 tokens
$6.75
Google · via OpenRoutergoogle-vertex/global · prompt ≤ 200000 tokens
$6.75
Amazon Bedrock · via OpenRouteramazon-bedrock/eu-west-1 · prompt ≤ 200000 tokens
$7.425
Google · via OpenRoutergoogle-vertex/us-east5 · prompt ≤ 200000 tokens
$7.425

OpenRouter

Catalog quote
Input
$3.00
Output
$15.00
Cached input
$0.30
USD / 1M tokens
1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5

Experiential

Standard list rate

Input
$3.00
Output
$15.00
USD / 1M tokens

Catalog list rate. Plan allowances and temporary discounts are separate.

200K context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDclaude-sonnet-4.5

Claude Platform on AWS

via OpenRouter

claude-on-aws · prompt ≤ 200000 tokens

Input
$3.00
Output
$15.00
Cached input
$0.30
USD / 1M tokens

Cache write $3.75/M tokens · 1h cache write $6/M tokens · Web search $0.01/search

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::claude-on-aws

Claude Platform on AWS

via OpenRouter

claude-on-aws · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$6.00
Output
$22.50
Cached input
$0.60
USD / 1M tokens

Cache write $7.5/M tokens · 1h cache write $12/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::claude-on-aws

Azure

via OpenRouter

azure/global

Input
$3.00
Output
$15.00
Cached input
$0.30
USD / 1M tokens

Cache write $3.75/M tokens · 1h cache write $6/M tokens · Web search $0.01/search

200K context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::azure/global

Amazon Bedrock

via OpenRouter

amazon-bedrock · prompt ≤ 200000 tokens

Input
$3.00
Output
$15.00
Cached input
$0.30
USD / 1M tokens

Cache write $3.75/M tokens · 1h cache write $6/M tokens · Web search $0.01/search

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::amazon-bedrock

Amazon Bedrock

via OpenRouter

amazon-bedrock · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$6.00
Output
$22.50
Cached input
$0.60
USD / 1M tokens

Cache write $7.5/M tokens · 1h cache write $12/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::amazon-bedrock

Anthropic

via OpenRouter

anthropic · prompt ≤ 200000 tokens

Input
$3.00
Output
$15.00
Cached input
$0.30
USD / 1M tokens

Cache write $3.75/M tokens · 1h cache write $6/M tokens · Web search $0.01/search

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::anthropic

Anthropic

via OpenRouter

anthropic · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$6.00
Output
$22.50
Cached input
$0.60
USD / 1M tokens

Cache write $7.5/M tokens · 1h cache write $12/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::anthropic

Google

via OpenRouter

google-vertex/global · prompt ≤ 200000 tokens

Input
$3.00
Output
$15.00
Cached input
$0.30
USD / 1M tokens

Cache write $3.75/M tokens · 1h cache write $6/M tokens · Web search $0.01/search

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::google-vertex/global

Google

via OpenRouter

google-vertex/global · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$6.00
Output
$22.50
Cached input
$0.60
USD / 1M tokens

Cache write $7.5/M tokens · 1h cache write $12/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::google-vertex/global

Amazon Bedrock

via OpenRouter

amazon-bedrock/eu-west-1 · prompt ≤ 200000 tokens

Input
$3.30
Output
$16.50
Cached input
$0.33
USD / 1M tokens

Cache write $4.125/M tokens · 1h cache write $6.6/M tokens · Web search $0.01/search

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::amazon-bedrock/eu-west-1

Amazon Bedrock

via OpenRouter

amazon-bedrock/eu-west-1 · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$6.60
Output
$24.75
Cached input
$0.66
USD / 1M tokens

Cache write $8.25/M tokens · 1h cache write $13.2/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::amazon-bedrock/eu-west-1

Google

via OpenRouter

google-vertex/us-east5 · prompt ≤ 200000 tokens

Input
$3.30
Output
$16.50
Cached input
$0.33
USD / 1M tokens

Cache write $4.125/M tokens · 1h cache write $6.6/M tokens · Web search $0.01/search

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::google-vertex/us-east5

Google

via OpenRouter

google-vertex/us-east5 · prompt over 200000 tokens · rate option 1

Conditional rate
Input
$6.60
Output
$24.75
Cached input
$0.66
USD / 1M tokens

Cache write $8.25/M tokens · 1h cache write $13.2/M tokens · Web search $0.01/search · A rate applies when all its listed conditions match. Dates and times use UTC.

1M context64K max outputPrice source ↗Checked Oct 18, 2026
Endpoint IDanthropic/claude-sonnet-4.5::google-vertex/us-east5

Offers for this model

1 offer

Experiential Labs · Discount

1.25% off · Experiential Pro model discounts

Paid Pro plan required, covering the first 2,000 credits of usage each month, then list price.

Checked Source ↗

View offer ↗

Model specifications

Developer
anthropic
Modality
Language
Context
1,000,000 tokens
Maximum output
64,000 tokens
Weights
Not reported
Provider listed
Sep 29, 2025
First discovered
Oct 16, 2026

Exact identities

  • openrouteranthropic/claude-sonnet-4.5
  • experientialclaude-sonnet-4.5

Sources

Updated Oct 18, 2026

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1M contextImage inputTool callingNo reported score
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$1.00in$5.00out/ 1M tokens · USDAnthropic · via OpenRouter · 2 endpointsanthropic