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API | CLAUDE FABLE 5.1 | 1M-1B

API | CLAUDE FABLE 5.1 | 1M-1B

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💬 WHAT IS THIS?

We provide an API with a specific token allowance and access to the latest Claude models.
The API key can be used with the official Claude application (Claude CLI) as well as any extensions or programs that allow for custom gateway/endpoint configuration.

You can set up the API yourself using the instructions or use our ready-made auto-configuration script. Even if you haven´t worked with external APIs before, the entire setup process usually takes less than 5 minutes.🧑‍💻 HOW IT WORKS

The API key you receive works with any program or extension that supports custom endpoint configuration.
Compatible programs include: Claude Code, Codex, VS Code, Claude Code CLI, OpenCode, Cursor, Antigravity, and any other applications compatible with Anthropic.

• Your chats and personal information are stored only on your device and on Anthropic´s servers.
• You can top up your purchased API key through us, avoiding the need to spend time on reconfiguration or reconnection.
• We provide a user-friendly interface for managing tokens, checking balances, and tracking usage.
• Our APIs do not require VPN services when accessed from Russia, Ukraine, or Europe.📊 TOKEN USAGE

Token consumption depends on the selected model and its operating mode. Each model has a specific multiplier applied to cost calculations.

Calculations account for:
• input tokens — data sent to the model;
• output tokens — the response generated by the model;

Model multipliers:
• Claude Fable 5.1 — x8
• Claude Fable 5 — x8
• Claude Opus 5/4.8/4.7/4.6 — x4
• Claude Sonnet 5/4.6 — x2
• Claude Haiku 4.5 — x0.9

Prompt caching is not used, so cache creation and cache read operations are not included in the calculations. Each request is processed as a new one, and any project context provided is counted as standard input tokens.

Actual consumption depends on the request size, the volume of project data, the selected model, and the length of the response.🏆 GUARANTEE AND SECURITY

We guarantee the functionality of our API keys and services; your personal data remains solely with you, and we do not collect any analytics or confidential information regarding your requests.

• If a purchased API key proves to be invalid or non-functional, we offer a free replacement or a refund. • We help resolve any issues arising on our end while preserving your tokens and settings.
• We operate daily and are ready to assist you at virtually any time of day or night.

Nov 04, 2026

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API | CLAUDE FABLE 5.1 | 1M-1B

API | CLAUDE FABLE 5.1 | 1M-1B