Claude Opus 4.5 API Pricing

As of October 10, 2026, Claude Opus 4.5 costs $5.00 per 1M input tokens and $25.00 per 1M output tokens on Anthropic, with cache reads at $0.50 and cache writes at $6.25 per 1M tokens. It has a 200,000-token context window and returns up to 64,000 tokens per response.

By AnthropicModel ID claude-opus-4-5Prices updated October 10, 2026Checked October 10, 2026

Input: $5.00 / 1M tokens
Output: $25.00 / 1M tokens
Cache read: $0.50 / 1M tokens
Context window: 200,000 tokens
Max output: 64,000 tokens
Providers: 8
Added to LiteLLM: November 2025

Claude Opus 4.5 pricing by provider

13 listings across 8 providers. Token prices are in US dollars per 1M tokens. The highlighted row is the price quoted above.

Provider	Model name in LiteLLM	Input	Output	Cache read	Cache write	Batch in	Batch out	Context
Anthropic	`claude-opus-4-5`	$5.00	$25.00	$0.50	$6.25	$2.50	$12.50	200K
Anthropicsnapshot 20251101	`claude-opus-4-5-20251101`	$5.00	$25.00	$0.50	$6.25	$2.50	$12.50	200K
Amazon Bedrocksnapshot 20251101	`anthropic.claude-opus-4-5-20251101-v1:0`	$5.00	$25.00	$0.50	$6.25	–	–	200K
Azure AI Foundry	`azure_ai/claude-opus-4-5`	$5.00	$25.00	$0.50	$6.25	–	–	200K
Databricks	`databricks/databricks-claude-opus-4-5`	$5.00	$25.00	$0.50	$6.25	–	–	200K
GMI Cloud	`gmi/anthropic/claude-opus-4.5`	$5.00	$25.00	–	–	–	–	400K
Google Vertex AI	`vertex_ai/claude-opus-4-5`	$5.00	$25.00	$0.50	$6.25	$2.50	$12.50	200K
Google Vertex AI	`vertex_ai/claude-opus-4-5@20251101`	$5.00	$25.00	$0.50	$6.25	$2.50	$12.50	200K
Perplexity	`perplexity/anthropic/claude-opus-4-5`	$5.00	$25.00	$0.50	–	–	–	–
Vercel AI Gateway	`vercel_ai_gateway/anthropic/claude-opus-4.5`	$5.00	$25.00	$0.50	$6.25	–	–	200K
Amazon BedrockEU cross-region, snapshot 20251101	`eu.anthropic.claude-opus-4-5-20251101-v1:0`	$5.50	$27.50	$0.55	$6.875	–	–	200K
Amazon BedrockGlobal cross-region, snapshot 20251101	`global.anthropic.claude-opus-4-5-20251101-v1:0`	$5.00	$25.00	$0.50	$6.25	–	–	200K
Amazon BedrockUS cross-region, snapshot 20251101	`us.anthropic.claude-opus-4-5-20251101-v1:0`	$5.50	$27.50	$0.55	$6.875	–	–	200K

Other Claude Opus 4.5 prices on Anthropic

Cache write, 1 hour	$10.00 per 1M tokens
Web search	$10.00 per 1K searches

What Claude Opus 4.5 costs in practice

1,000 requests with 2,000 input and 500 output tokens each

Anthropic	$22.50
Amazon Bedrock	$22.50
Azure AI Foundry	$22.50
GMI Cloud	$22.50
Anthropic batch	$11.25

100 long-document requests with 100,000 input and 2,000 output tokens each

Anthropic	$55.00
Amazon Bedrock	$55.00
Azure AI Foundry	$55.00
GMI Cloud	$55.00

Claude Opus 4.5 features

Function calling
Structured output
Image input
PDF input
Reasoning
Prompt caching
Web search
Computer use

Use Claude Opus 4.5 with LiteLLM

Call Claude Opus 4.5 through the LiteLLM Python SDK, or put it behind the LiteLLM proxy and send OpenAI-format requests to /v1/chat/completions. LiteLLM tracks the cost of every request at these prices.

Python SDK

from litellm import completion

response = completion(
    model="claude-opus-4-5",
    messages=[{"role": "user", "content": "Hello!"}],
)

Proxy config.yaml

model_list:
  - model_name: claude-opus-4-5
    litellm_params:
      model: claude-opus-4-5
      api_key: os.environ/ANTHROPIC_API_KEY

Call the proxy

curl http://0.0.0.0:4000/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-1234" \
  -d '{
    "model": "claude-opus-4-5",
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

Claude Opus 4.5 FAQ

How much does Claude Opus 4.5 cost?

Claude Opus 4.5 costs $5.00 per 1M input tokens and $25.00 per 1M output tokens on Anthropic, with cache reads at $0.50 and cache writes at $6.25 per 1M tokens. Batch requests cost $2.50 per 1M input tokens and $12.50 per 1M output tokens.

What is the context window of Claude Opus 4.5?

Claude Opus 4.5 has a 200,000-token context window and returns up to 64,000 tokens per response.

Which providers offer Claude Opus 4.5?

Claude Opus 4.5 is available from 8 providers through LiteLLM: Anthropic, Amazon Bedrock, Azure AI Foundry, Databricks, GMI Cloud, Google Vertex AI, Perplexity and Vercel AI Gateway. The lowest price is on Anthropic.

How do I call Claude Opus 4.5 with an OpenAI-compatible API?

Use the LiteLLM Python SDK with model="claude-opus-4-5", or add the model to the LiteLLM proxy's config.yaml and send requests to /v1/chat/completions from any OpenAI client. LiteLLM tracks the cost of every request at the prices on this page.

What features does Claude Opus 4.5 support?

Claude Opus 4.5 supports function calling, structured output, image input, PDF input, reasoning, prompt caching, web search and computer use.

When did LiteLLM add Claude Opus 4.5?

Claude Opus 4.5 was added to LiteLLM's model price file in November 2025.

Sources

Prices come from LiteLLM's open-source model_prices_and_context_window.json, which LiteLLM uses to calculate the cost of every request. Provider pricing pages:

LiteLLM docs: Anthropic, Amazon Bedrock, Azure AI Foundry, Databricks, GMI Cloud, Google Vertex AI.

Provider pages: Anthropic, Amazon Bedrock, Azure AI Foundry, Databricks, GMI Cloud, Google Vertex AI, Perplexity, Vercel AI Gateway.