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Anthropic: Claude Sonnet 4.5 (batch)

Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. $1.50 per million input tokens, $7.50 per million output tokens. 1,000,000 token context window, maximum output of 64,000 tokens. Higher uptime with 5 providers. Includes independent benchmarks from Artificial Analysis.

View source on OpenRouter
Overview

Model specifications

Context
1,000,000 tokens
Maximum output
64,000 tokens
Architecture
text+image+file->text
Tokenizer
Claude
Knowledge cutoff
2025-01-31
Moderated
Yes
OPENROUTER

Complete pricing

Synchronized OpenRouter rates. Token prices are shown per one million tokens.

Input
$1.5
/M tokens
  • ≤200K$1.5
  • >200K$3
Output
$7.5
/M tokens
  • ≤200K$7.5
  • >200K$11.25
Cache read
$0.15
/M tokens
  • ≤200K$0.15
  • >200K$0.3
Cache write
$1.875
/M tokens
  • ≤200K$1.875
  • >200K$3.75
Cache Write (1h)
$3
/M tokens
  • ≤200K$3
  • >200K$6
Web search
$10
/1K calls
API

Model configuration

Default parameters

temperature
1
top_p
1

Reasoning

Moderated
No
Default parameters
No
API

Quick start

Call this exact model ID through OpenRouter’s OpenAI-compatible API.

curl https://openrouter.ai/api/v1/chat/completions \
  -H "Authorization: Bearer $OPENROUTER_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"anthropic/claude-sonnet-4.5:batch","messages":[{"role":"user","content":"Hello!"}]}'
Capabilities

Input → Output

Input
textimagefile
Output
text
Reasoning

No

API

Supported API parameters

include_reasoningmax_tokensreasoningresponse_formatstopstructured_outputstemperaturetool_choicetoolstop_ktop_p
Available providers

7 providers

Live providers on OpenRouter

Provider availability, latency, throughput and routing can change continuously. Open the source page for current operational data.

OpenRouter

Google

unknown
Context
1M
Maximum output
64K
Input
$3.00
Output
$15.00
Cache read
$0.300
Cache write
$3.75

Azure

unknown
Context
200K
Maximum output
64K
Input
$3.00
Output
$15.00
Cache read
$0.300
Cache write
$3.75

Claude Platform on AWS

unknown
Context
1M
Maximum output
64K
Input
$3.00
Output
$15.00
Cache read
$0.300
Cache write
$3.75

Amazon Bedrock

unknown
Context
1M
Maximum output
64K
Input
$3.00
Output
$15.00
Cache read
$0.300
Cache write
$3.75

Anthropic

unknown
Context
1M
Maximum output
64K
Input
$3.00
Output
$15.00
Cache read
$0.300
Cache write
$3.75

Amazon Bedrock

unknown
Context
1M
Maximum output
64K
Input
$3.30
Output
$16.50
Cache read
$0.330
Cache write
$4.13

Google

unknown
Context
1M
Maximum output
64K
Input
$3.30
Output
$16.50
Cache read
$0.330
Cache write
$4.13
anthropic

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Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...

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Anthropic: Claude Sonnet 5

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Context
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Input
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Output
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Input: $2.00Output: $10.00per 1M tokens
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