# New Model Available: Claude Fable 5.1

> Source: <https://zenmux.ai/anthropic/claude-fable-5.1>
> Published: 2026-09-02 01:15:33+00:00

Claude Fable 5.1 is Anthropic’s latest model for demanding reasoning and long-horizon agentic work, with stronger performance in long-running coding, multistep research, and document, spreadsheet, and slide workflows. It supports text and image inputs, text output, a 1M-token context window, and adaptive thinking that is always on with effort-based steering.

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## Providers

Route requests across multiple providers. Copy a provider slug to set your preference.

**$10**

*/ M tokens*

**$50**

*/ M tokens*

*Read:*

**0.25**/ M tokens

*Write:*

**12.5-20**/ M tokens1M4.36s38.9tps

**$10**

*/ M tokens*

**$50**

*/ M tokens*

*Read:*

**0.25**/ M tokens

*Write:*

**12.5-20**/ M tokens1M2.85s53.5tps

## Uptime

24hours
Direct request success rate on AI Gateway and per-provider.

## Throughput

24hours
P50 throughput on live AI Gateway traffic, in tokens per second (TPS).

## Latency

24hours
P50 time to first token (TTFT) on live AI Gateway traffic, in milliseconds.

## Activity

Token volume and request traffic to this model over time.

## Apps

Public apps that send the most traffic to this model. Good signal for what real production workloads look like — and a hint at which use cases this model is best suited for. [View All](https://zenmux.ai/analytics/apps)

## Related Models

More models from [Anthropic](https://zenmux.ai/anthropic)