How much does Claude Opus 4.5 20251101 cost?

On the Respan gateway, Claude Opus 4.5 20251101 costs from $5.00 per 1M input tokens and $25.00 per 1M output tokens on Anthropic and Bedrock, after gateway discounts. Averaged across its 3 routes from 2 providers, it costs $5.17 per 1M input tokens and $25.83 per 1M output tokens.

Which providers serve Claude Opus 4.5 20251101 on Respan?

Claude Opus 4.5 20251101 is available through 3 routes from 2 providers: Anthropic and Bedrock. Bedrock requires your own provider API key (BYOK).

What is Claude Opus 4.5 20251101's context window?

Claude Opus 4.5 20251101 accepts up to 200K tokens of context on its largest provider route.

How do I use Claude Opus 4.5 20251101 with the Respan gateway?

Point any OpenAI-compatible SDK at https://api.respan.ai/api/ with your Respan API key and set the model to "anthropic/claude-opus-4-5-20251101". To set it up with a coding agent, copy the agent setup prompt at the top of this page.

How fast is Claude Opus 4.5 20251101?

Over the last 30 days of requests through the Respan gateway, the fastest provider was Anthropic at 10 tokens per second, and the lowest response latency was 1.5 seconds on Bedrock. Speed varies with request size and provider.

Claude Opus 4.5 20251101

Q: What is Claude Opus 4.5 20251101?

Claude Opus 4.5 20251101 is a model from Anthropic, released on Nov 24, 2025. Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. $5 per million input tokens, $25 per million output tokens. 200,000 token context window, maximum output of 64,000 tokens. Higher uptime with 4 providers. Includes independent benchmarks from Artificial Analysis.

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. $5 per million input tokens, $25 per million output tokens. 200,000 token context window, maximum output of 64,000 tokens. Higher uptime with 4 providers. Includes independent benchmarks from Artificial Analysis.

Input / output, from: $5.00 / $25.00 per 1M
Context: 200K tokens
Released: Nov 24, 2025

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Agent setup

Paste into Claude Code, Cursor, or Codex

Help me set up the Respan gateway: fetch and follow https://www.respan.ai/docs/agent-setup.md. Use model "anthropic/claude-opus-4-5-20251101".

from openai import OpenAI

client = OpenAI(

    base_url="https://api.respan.ai/api/",

    api_key="YOUR_RESPAN_API_KEY",

)

response = client.chat.completions.create(

    model="anthropic/claude-opus-4-5-20251101",

    messages=[{"role": "user", "content": "Hello!"}],

)

print(response.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({

  baseURL: "https://api.respan.ai/api/",

  apiKey: "YOUR_RESPAN_API_KEY",

});

const response = await client.chat.completions.create({

  model: "anthropic/claude-opus-4-5-20251101",

  messages: [{ role: "user", content: "Hello!" }],

});

console.log(response.choices[0].message.content);

curl https://api.respan.ai/api/chat/completions \

  -H "Authorization: Bearer YOUR_RESPAN_API_KEY" \

  -H "Content-Type: application/json" \

  -d '{

    "model": "anthropic/claude-opus-4-5-20251101",

    "messages": [{"role": "user", "content": "Hello!"}]

}'

Read docs

Providers

3 routes from 2 providers, cheapest first, priced per 1M tokens after gateway discounts. BYOK routes use your own key.

Provider	Context	Input	Output	Cache read	Capabilities
Anthropic`anthropic/claude-opus-4-5-20251101`	200K	$5.00/M	$25.00/M	$0.50/M	+2
BedrockBYOK only`bedrock/global.anthropic.claude-opus-4-5-20251101-v1:0`	200K	$5.00/M	$25.00/M	$0.50/M	+2
BedrockBYOK only`bedrock/us.anthropic.claude-opus-4-5-20251101-v1:0`	200K	$5.50/M	$27.50/M	$0.55/M	+2

Is a provider down? Anthropic status, AWS Bedrock status

Pricing

Averaged across 3 routes from 2 providers, in USD per 1M tokens after gateway discounts.

Average input: $5.17 per 1M
Average output: $25.83 per 1M
Average cache read: $0.52 per 1M
Average cache write: $6.46 per 1M

Cost by volume

Total cost from 0 to 1T tokens on the cheapest and most expensive provider.

Highest$5.50/MBedrockLowest$5.00/MAnthropic and Bedrock

Throughput and latency

30-day averages from requests through the Respan gateway, 2 of 3 routes had traffic in that window. Under each figure, every model on the gateway by its average, this one in blue.