> ## Documentation Index
> Fetch the complete documentation index at: https://veniceai-feat-models-redesign.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Claude Opus 4.6 API

> Claude Opus 4.6 API on Venice: 1M context, $6.00 input and $30.00 output per 1M tokens. Anonymized access without your identity.

export const HubMount = ({view, children, ...props}) => {
  const [hub, setHub] = useState(null);
  const [failed, setFailed] = useState(false);
  useEffect(() => {
    let alive = true;
    const w = window;
    if (!w.__veniceModelHub) {
      const urls = w.location.hostname === 'localhost' ? ['http://localhost:3333/data/model-hub.bundle.json', '/data/model-hub.bundle.json'] : ['/data/model-hub.bundle.json'];
      const load = i => fetch(urls[i], {
        cache: 'no-cache'
      }).then(res => {
        if (!res.ok) throw new Error(`bundle ${res.status}`);
        return res.json();
      }).catch(err => i + 1 < urls.length ? load(i + 1) : Promise.reject(err));
      const Frag = <></>.type;
      const h = (type, props, ...kids) => {
        const T = type;
        const {key, ...rest} = props || ({});
        if (!kids.length) return <T key={key} {...rest} />;
        if (kids.length === 1) return <T key={key} {...rest}>{kids[0]}</T>;
        return <T key={key} {...rest}>{kids.map((kid, i) => <Frag key={i}>{kid}</Frag>)}</T>;
      };
      w.__veniceModelHub = load(0).then(bundle => new Function(`return (${bundle.code})`)()({
        h,
        Fragment: Frag,
        useState,
        useEffect,
        useRef,
        useMemo,
        useCallback
      }));
    }
    w.__veniceModelHub.then(instance => {
      if (alive) setHub(instance);
    }).catch(() => {
      w.__veniceModelHub = null;
      if (alive) setFailed(true);
    });
    return () => {
      alive = false;
    };
  }, []);
  const View = hub ? hub[view] : null;
  if (View) return <View {...props}>{children}</View>;
  if (failed) {
    return <div className="vx-mount is-failed">
        <p className="vx-mount-note">The interactive model catalog could not load. The full data is below.</p>
        {children}
      </div>;
  }
  return <div className="vx-mount" aria-busy="true">
      <div className="vx-mount-skeleton" aria-hidden="true"><span /><span /><span /></div>
      <div className="vx-mount-source">{children}</div>
    </div>;
};

<HubMount view="ModelPage" data={{"family":{"slug":"claude-opus-4-6","name":"Claude Opus 4.6","modality":"text","task":"chat","provider":"anthropic","description":"Claude Opus 4.6 is Anthropic's most capable reasoning model, building on Opus 4.5 with enhanced performance across complex software engineering, agentic workflows, and long-horizon tasks. It features a 1M token context window, improved multimodal capabilities, and stronger robustness to prompt injection.","primary":"claude-opus-4-6","variants":["claude-opus-4-6"],"created":1770249600,"updated":1770249600,"privacy":["anonymized"]},"models":[{"id":"claude-opus-4-6","name":"Claude Opus 4.6","type":"text","modality":"text","task":"chat","variant":"standard","provider":"anthropic","created":1770249600,"description":"Claude Opus 4.6 is Anthropic's most capable reasoning model, building on Opus 4.5 with enhanced performance across complex software engineering, agentic workflows, and long-horizon tasks. It features a 1M token context window, improved multimodal capabilities, and stronger robustness to prompt injection.","privacy":"anonymized","text":{"context":1000000,"maxOutput":128000,"reasoning":{"supported":true,"effort":["low","medium","high","max"],"defaultEffort":"medium"},"caps":{"tools":true,"structured":true,"vision":true,"maxImages":10,"webSearch":true,"code":true}},"pricing":{"input":6,"output":30,"cacheRead":0.6,"cacheWrite":7.5,"blended":12},"headline":{"value":12,"unit":"per 1M tokens","basis":"blended"},"endpoints":[{"id":"chat","method":"POST","path":"/chat/completions","name":"Chat Completions","status":"stable","recommended":true},{"id":"responses","method":"POST","path":"/responses","name":"Responses","status":"alpha"}],"family":"claude-opus-4-6"}],"related":{"similar":[{"slug":"gpt-5-5","name":"GPT-5.5","provider":"openai","modality":"text","privacy":["anonymized"],"created":1776902400,"headline":{"value":14.0625,"unit":"per 1M tokens","basis":"blended"},"variants":1},{"slug":"gpt-5-6-sol","name":"GPT-5.6 Sol","provider":"openai","modality":"text","privacy":["anonymized"],"created":1783555200,"headline":{"value":10,"unit":"per 1M tokens","basis":"blended"},"variants":1},{"slug":"gpt-5-6-sol-pro","name":"GPT-5.6 Sol Pro","provider":"openai","modality":"text","privacy":["anonymized"],"created":1783555200,"headline":{"value":10,"unit":"per 1M tokens","basis":"blended"},"variants":1},{"slug":"claude-opus-4-5","name":"Claude Opus 4.5","provider":"anthropic","modality":"text","privacy":["anonymized"],"created":1764979200,"headline":{"value":12,"unit":"per 1M tokens","basis":"blended"},"variants":1}],"versions":[{"slug":"claude-opus-5-5","name":"Claude Opus 5.5","provider":"anthropic","modality":"text","privacy":["anonymized"],"created":1789689600,"headline":{"value":9.6,"unit":"per 1M tokens","basis":"blended"},"variants":2},{"slug":"claude-opus-5","name":"Claude Opus 5","provider":"anthropic","modality":"text","privacy":["anonymized"],"created":1784764800,"headline":{"value":12,"unit":"per 1M tokens","basis":"blended"},"variants":2},{"slug":"claude-opus-4-8","name":"Claude Opus 4.8","provider":"anthropic","modality":"text","privacy":["anonymized"],"created":1779926400,"headline":{"value":12,"unit":"per 1M tokens","basis":"blended"},"variants":2},{"slug":"claude-opus-4-7","name":"Claude Opus 4.7","provider":"anthropic","modality":"text","privacy":["anonymized"],"created":1776297600,"headline":{"value":12,"unit":"per 1M tokens","basis":"blended"},"variants":1},{"slug":"claude-opus-4-5","name":"Claude Opus 4.5","provider":"anthropic","modality":"text","privacy":["anonymized"],"created":1764979200,"headline":{"value":12,"unit":"per 1M tokens","basis":"blended"},"variants":1}]},"providers":{"anthropic":{"slug":"anthropic","name":"Anthropic","logo":"/images/icons/models/opus.svg"},"openai":{"slug":"openai","name":"OpenAI","logo":"/images/icons/models/openai.svg"}},"faq":[{"q":"How much does the Claude Opus 4.6 API cost?","a":"$6.00 per 1M input tokens and $30.00 per 1M output tokens, with cached input at $0.60 per 1M. Prices are in USD and can be paid in DIEM at parity."},{"q":"What is the Claude Opus 4.6 model ID?","a":"Use `claude-opus-4-6` as the `model` parameter."},{"q":"Is the Claude Opus 4.6 API private?","a":"Claude Opus 4.6 is anonymized: Venice forwards requests to the provider without your identity, but the provider may retain prompt data, so use a private model for sensitive work."},{"q":"What is the context window of Claude Opus 4.6?","a":"1M tokens of context, with up to 125K output tokens per response."},{"q":"What does Claude Opus 4.6 support?","a":"Claude Opus 4.6 supports function calling, structured outputs, reasoning, image input, web search and prompt caching. Reasoning effort is adjustable with `reasoning_effort`: low, medium, high and max (default medium)."},{"q":"Which endpoint does the Claude Opus 4.6 API use?","a":"Call `POST /chat/completions`. `/responses` (Alpha) is also supported."}]}} />

<div className="vx-static">
  <Accordion title="Plain-text specification">
    # Claude Opus 4.6 API

    Claude Opus 4.6 is a large language model by Anthropic, available on the Venice API as `claude-opus-4-6`. Requests are anonymized, so the provider never sees your identity.

    Claude Opus 4.6 is Anthropic's most capable reasoning model, building on Opus 4.5 with enhanced performance across complex software engineering, agentic workflows, and long-horizon tasks. It features a 1M token context window, improved multimodal capabilities, and stronger robustness to prompt injection.

    ## Claude Opus 4.6 API pricing

    | Model ID | Variant | Privacy | Price |
    | - | - | - | - |
    | `claude-opus-4-6` | Standard | Anonymized | $6.00 input / $30.00 output per 1M tokens |

    ## Claude Opus 4.6 specifications

    | Spec | Value |
    | - | - |
    | Provider | Anthropic |
    | Released | Feb 5, 2026 |
    | Privacy | Anonymized |
    | Context window | 1M tokens |
    | Max output | 125K tokens |
    | Reasoning effort | low, medium, high, max |

    ## How to use the Claude Opus 4.6 API

    Send requests to `POST https://api.venice.ai/api/v1/chat/completions` with `"model": "claude-opus-4-6"` and your API key.

    ```bash theme={null}
    curl https://api.venice.ai/api/v1/chat/completions \
      -H "Authorization: Bearer $VENICE_API_KEY" \
      -H "Content-Type: application/json" \
      -d '{
        "model": "claude-opus-4-6",
        "messages": [{ "role": "user", "content": "Explain TEE attestation in two sentences." }],
        "reasoning_effort": "medium"
      }'
    ```

    ## Claude Opus 4.6 API FAQ

    ### How much does the Claude Opus 4.6 API cost?

    $6.00 per 1M input tokens and $30.00 per 1M output tokens, with cached input at \$0.60 per 1M. Prices are in USD and can be paid in DIEM at parity.

    ### What is the Claude Opus 4.6 model ID?

    Use `claude-opus-4-6` as the `model` parameter.

    ### Is the Claude Opus 4.6 API private?

    Claude Opus 4.6 is anonymized: Venice forwards requests to the provider without your identity, but the provider may retain prompt data, so use a private model for sensitive work.

    ### What is the context window of Claude Opus 4.6?

    1M tokens of context, with up to 125K output tokens per response.

    ### What does Claude Opus 4.6 support?

    Claude Opus 4.6 supports function calling, structured outputs, reasoning, image input, web search and prompt caching. Reasoning effort is adjustable with `reasoning_effort`: low, medium, high and max (default medium).

    ### Which endpoint does the Claude Opus 4.6 API use?

    Call `POST /chat/completions`. `/responses` (Alpha) is also supported.

    ## Related models

    * [Claude Opus 5.5 API](/models/claude-opus-5-5): $4.80 input / $24.00 output per 1M tokens
    * [Claude Opus 5 API](/models/claude-opus-5): $6.00 input / $30.00 output per 1M tokens
    * [Claude Opus 4.8 API](/models/claude-opus-4-8): $6.00 input / $30.00 output per 1M tokens
    * [Claude Opus 4.7 API](/models/claude-opus-4-7): $6.00 input / $30.00 output per 1M tokens
    * [Claude Opus 4.5 API](/models/claude-opus-4-5): $6.00 input / $30.00 output per 1M tokens
    * [GPT-5.5 API](/models/gpt-5-5): $6.25 input / $37.50 output per 1M tokens
    * [GPT-5.6 Sol API](/models/gpt-5-6-sol): $5.00 input / $25.00 output per 1M tokens
    * [GPT-5.6 Sol Pro API](/models/gpt-5-6-sol-pro): $5.00 input / $25.00 output per 1M tokens
  </Accordion>
</div>


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