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claude-sonnet-4.5

OpenRouter · chat model

claude-sonnet-4.5 is listed here as a chat model from OpenRouter. This page shows simple API pricing, token limits, and capability flags so you can compare it with similar options.

Input
$3.0000 / 1M tokens
Output
$15.0000 / 1M tokens
Cached input
$0.3000 / 1M tokens
Context
1.0M
Compare similar models Open a side-by-side table using this route and the closest match from the current catalog. Estimate workload cost Use token counts, request volume, and cache assumptions to check a realistic monthly bill. Explore benchmark family Review source-backed benchmark rows for the attached base model family. Check data sources See how pricing data is generated and what still needs provider verification.

Quick read

Best for

Use this page when you need a fast view of cost, context size, and supported features before testing the model in your own workload.

Things to verify

Always check the provider page for discounts, cache pricing, region rules, and any model limits that may not appear in public metadata.

Pricing

Item Price
Input
$3.0000 / 1M tokens
Output
$15.0000 / 1M tokens
Cached input
$0.3000 / 1M tokens
Cache write
$3.7500 / 1M tokens
Image input
$4800.0000 / 1M tokens
Embedding
$3.0000 / 1M tokens

Token limits

Context window
1.0M
Max input tokens
1.0M
Max output tokens
1.0M
Max tokens
1.0M

Capabilities

Capability Supported
Vision ✅
Function calling ✅
Parallel function calling —
Tool choice ✅
Prompt caching ✅
Reasoning ✅
Response schema —
System messages —
Audio input —
Audio output —
Web search —
PDF input —
Video input —

Benchmarks

Most benchmark rows are attached to the base model family rather than this provider route. Open benchmark explorer

Benchmark Score Metric Scope Checked Source
SWE-bench Verified 72.7% score Base model: Claude Sonnet 4 (Claude Sonnet 4) 2026-05-31 Link
GPQA Diamond 70.0% score Base model: Claude Sonnet 4 (Claude Sonnet 4) 2026-05-31 Link
MMMLU 85.4% score Base model: Claude Sonnet 4 (Claude Sonnet 4) 2026-05-31 Link
MMMU 72.6% score Base model: Claude Sonnet 4 (Claude Sonnet 4) 2026-05-31 Link
LiveBench 68.19 score Base model: Claude Sonnet 4.5 (Claude Sonnet 4.5 Thinking) 2026-05-31 Link
SWE-bench Verified 77.2% score Base model: Claude Sonnet 4.5 (Claude Sonnet 4.5) 2026-05-31 Link
Terminal-Bench 2.0 51.0% score Base model: Claude Sonnet 4.5 (Claude Sonnet 4.5) 2026-05-31 Link
τ²-bench (Retail) 86.2% score Base model: Claude Sonnet 4.5 (Claude Sonnet 4.5) 2026-05-31 Link
GPQA Diamond 83.4% score Base model: Claude Sonnet 4.5 (Claude Sonnet 4.5) 2026-05-31 Link
SWE-bench Verified 82.0% score Base model: Claude Sonnet 4.5 (claude-sonnet-4-5) 2026-05-31 Link
Aider Polyglot 61.3% score Base model: Claude Sonnet 4.5 (claude-sonnet-4-20250514 (32k thinking)) 2026-05-31 Link

Sources

Source links
Pricing data LiteLLM model cost map
Synced at 2026-05-28

Docs

Official docs

Similar models

This list is ranked by overall similarity. Use filters to emphasize the lens that matters most for the replacement you are making.

Comparing from
Model Cost Input shape Features Context Why it is close
claude-sonnet-4.5
OpenRouter
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
1.0M
Current model
Reference row

Overall blends cost, modality overlap, capabilities, and context.

Model Cost Input shape Features Context Why it is close
claude-sonnet-4.6
OpenRouter
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
128.0K
Same provider
Overall 87%
claude-sonnet-4
OpenRouter
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Same provider
Overall 86%
claude-sonnet-4.5
vercel_ai_gateway
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 86%
claude-3-7-sonnet
vercel_ai_gateway
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 82%
claude-sonnet-4
vercel_ai_gateway
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 82%
claude-opus-4.6
OpenRouter
In $5.0000 / 1M tokens
Out $25.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
128.0K
Same provider
Overall 79%
gpt-5.2
OpenRouter
In $1.7500 / 1M tokens
Out $14.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
128.0K
Same provider
Overall 78%
claude-opus-4.5
OpenRouter
In $5.0000 / 1M tokens
Out $25.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
32.0K
Same provider
Overall 77%
claude-haiku-4.5
OpenRouter
In $1.0000 / 1M tokens
Out $5.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
200.0K
Same provider
Overall 75%
anthropic.claude-sonnet-4-6
bedrock_converse
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext pdf
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 72%
global.anthropic.claude-sonnet-4-6
bedrock_converse
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext pdf
Output: text
VisionFunction callingTool choicePrompt caching
64.0K
Text + image covered
Overall 72%
anthropic.claude-3-7-sonnet-20250219-v1:0
bedrock_converse
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext pdf
Output: text
VisionFunction callingTool choicePrompt caching
8.2K
Text + image covered
Overall 71%
claude-opus-4
OpenRouter
In $15.0000 / 1M tokens
Out $75.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
32.0K
Same provider
Overall 69%
claude-opus-4.1
OpenRouter
In $15.0000 / 1M tokens
Out $75.0000 / 1M tokens
fileimagetext
Output: text
VisionFunction callingTool choicePrompt caching
32.0K
Same provider
Overall 69%
anthropic.claude-3-5-sonnet-20241022-v2:0
Bedrock
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext pdf
Output: text
VisionFunction callingTool choicePrompt caching
8.2K
Text + image covered
Overall 68%
anthropic.claude-3-5-sonnet-20240620-v1:0
Bedrock
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext pdf
Output: text
VisionFunction callingTool choice
4.1K
Text + image covered
Overall 61%
anthropic.claude-3-sonnet-20240229-v1:0
Bedrock
In $3.0000 / 1M tokens
Out $15.0000 / 1M tokens
fileimagetext pdf
Output: text
VisionFunction callingTool choice
4.1K
Text + image covered
Overall 61%