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Claude

Claude Opus 4.6: Online Chat & API

claude-opus-4-6

Opus-class intelligence with visible extended thinking — watch the model reason step by step before it answers. 1M-token context.

Input 637,5 ₽ · Output 3 187,5 ₽ /1M tokens1M context Thinking Prompt caching
API key
claude-opus-4-6
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Try it right here

Real model, streaming live — free trial credits on sign-up

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About Claude Opus 4.6

Claude Opus 4.6 pairs Opus-class capability with classic extended thinking: enable it and the model returns its reasoning trace alongside the answer — invaluable for auditing complex decisions, teaching and debugging prompts.

With a 1M-token context window and prompt caching, it handles long documents and repeated context economically. Choose it when you want top-tier output and want to see how the model got there.

On Sozdai you can use Claude Opus 4.6 two ways with one account and one credit balance: chat in the browser playground on this page, or call it programmatically through an OpenAI-compatible endpoint. Pricing is pure pay-as-you-go per token with no subscription.

Why Claude Opus 4.6

Visible extended thinking

Enable thinking and receive the full reasoning trace — audit, debug and learn from how the model reasons.

Opus-class quality

Strong coding, analysis and long-form writing from the Opus line.

OpenAI-compatible API

Point your existing OpenAI SDK at our base URL and it just works — streaming, tool calling, usage accounting included. Anthropic-native /v1/messages is supported too.

Prompt caching, up to 90% off

Mark stable context (system prompts, tools, documents) with cache_control and repeated tokens are billed at a fraction of the input price.

One balance for everything

Web chat and API share the same credit balance and transparent per-token pricing. No subscription, no minimums.

Specifications

Model IDclaude-opus-4-6
FamilyClaude
TypeLLM
Context window1M tokens
Input price637,5 ₽ / 1M tokens
Output price3 187,5 ₽ / 1M tokens
Cache read price63,75 ₽ / 1M tokens
Thinking / reasoningYes
Prompt cachingYes
API compatibilityOpenAI SDK + Anthropic /v1/messages
StreamingYes

Integrate in three steps

1

Create an API key

Sign up, open the console and issue a key — free trial credits are included, no card required.

2

Point your SDK at Sozdai

Set the base URL to our endpoint and pass model \"claude-opus-4-6\". Existing OpenAI SDK code needs no other changes.

3

Ship and monitor

Stream responses in production and track every request's tokens and cost in the usage logs.

Frequently asked questions

Can I try Claude Opus 4.6 without writing code?+

Yes — the playground on this page is the real model. Sign up, get trial credits and chat instantly; the same account later works for the API.

Is the API compatible with the OpenAI SDK?+

Yes. Use any OpenAI SDK (Python, Node, etc.) with our base URL, or call the Anthropic-native /v1/messages endpoint — both are supported with streaming.

How does pricing work?+

Pure pay-as-you-go per token, shown on this page and billed from your credit balance (1 credit = $0.01). Cache hits are billed at a heavily discounted rate. No subscription.

Does it support thinking / reasoning?+

Yes — classic extended thinking with a configurable budget, and the reasoning trace is returned so you can see every step.

What is the context window?+

1M tokens — large codebases and long documents in one go.