Claude Opus 4.1

anthropic/claude-opus-4.1

Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...

InputFileImageText
OutputText
Input / Outputclub$15.9 / $79.5per 1M tokens · USD
Context window200Ktoken
Maximum output32Ktoken

Pricing

Current model usage rates. Choose your plan to see its published prices.

Pricing
UsagePricing
InputUS$15.9/ 1M token
Cache readUS$1.59/ 1M token
Cache writeUS$19.875/ 1M token
Cache write · 1 hUS$31.8/ 1M token
OutputUS$79.5/ 1M token

Membership and model usage are billed separately. Compare plans

Capabilities

Input
FileImageText
Output
Text
Context window
200,000 token
Maximum output
32,000 token

Providers

Model supply available through Vecbase.

Via OpenRouter

Access is subject to your account’s permissions and model availability.

Frequently asked questions

What is Claude Opus 4.1, and who develops it?

Claude Opus 4.1 is a model from Anthropic. Its model ID on Vecbase is anthropic/claude-opus-4.1. Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...

How much does Claude Opus 4.1 cost on Vecbase?

For Claude Opus 4.1, the Club plan lists USD 15.9 per 1 million input tokens and USD 79.5 per 1 million output tokens, as of 10/22/2026, 9:28:00 PM UTC. See the pricing table for cache rates, input-length tiers and other usage types. Membership fees are separate.

How many tokens fit in Claude Opus 4.1’s context window?

Claude Opus 4.1 has a context window of 200,000 tokens. Input and output must fit within the limits of the API you use.

What is the maximum output length for Claude Opus 4.1?

Claude Opus 4.1 can generate up to 32,000 tokens per response. Your API or request settings may set a lower limit.

Can Claude Opus 4.1 call tools in an agent workflow?

Yes. Claude Opus 4.1 supports tool calling. Your application provides the tool definitions and runs the tools the model requests.

Which input and output formats does Claude Opus 4.1 support?

Claude Opus 4.1 accepts File, Image, and Text and produces Text.

Which providers make Claude Opus 4.1 available through Vecbase?

Vecbase offers Claude Opus 4.1 through OpenRouter. Availability may vary by provider.

Which model ID should an agent use to request Claude Opus 4.1?

Use anthropic/claude-opus-4.1 as the model identifier for Claude Opus 4.1. See Vecbase’s API documentation for authentication, required inputs and supported request formats.

What does an agent need to access Claude Opus 4.1 through Vecbase?

To use Claude Opus 4.1, you need an authenticated account with the required permissions, sufficient balance and the relevant capability enabled. See the documentation for setup.

Is a release date available for Claude Opus 4.1?

We do not yet have a confirmed release date for Claude Opus 4.1.

Which models can I compare with Claude Opus 4.1 on Vecbase?

You can compare Claude Opus 4.1 with Claude Haiku Latest (anthropic/claude-haiku-latest), Claude Sonnet Latest (anthropic/claude-sonnet-latest), and Claude Opus Latest (anthropic/claude-opus-latest). Check their capabilities and prices to find the best fit for your task.