# Anthropic: Claude Fable Latest vs Meta: Muse Spark 1.3

Anthropic: Claude Fable Latest vs Meta: Muse Spark 1.3: Meta: Muse Spark 1.3 has the larger context window (1,048,576 tokens); Meta: Muse Spark 1.3 is cheaper on input ($1.25 per 1M tokens); Meta: Muse Spark 1.3 supports more input modalities (text, image, video, file). Data via OpenRouter /models, as of Oct 29, 2026.

Source: **OpenRouter /models** · _as of Oct 29, 2026_

[OpenRouter model catalogue feed](https://openrouter.ai/api/v1/models)

- [Meta: Muse Spark 1.3 source listing](https://openrouter.ai/meta/muse-spark-1.3)

These are provider-catalog specifications, not a task-quality benchmark. Prices describe the source listing and may vary by provider or routing. Unknown values are shown as — when the feed did not supply that value.

## Side-by-side comparison

| Metric | Anthropic: Claude Fable Latest | Meta: Muse Spark 1.3 |
| --- | --- | --- |
| Context (tokens) | 1,000,000 | 1,048,576 |
| Input $/M | $10.00 | $1.25 |
| Output $/M | $50.00 | $4.25 |
| Input modalities | text, image, file | text, image, video, file |
| Output modalities | text | text |
| Model id | ~anthropic/claude-fable-latest | meta/muse-spark-1.3 |

## Frequently asked questions

### Which has a larger context window, Anthropic: Claude Fable Latest or Meta: Muse Spark 1.3?

Meta: Muse Spark 1.3 has the larger context window at 1,048,576 tokens. (via OpenRouter /models, as of Oct 29, 2026.)

### Which is cheaper, Anthropic: Claude Fable Latest or Meta: Muse Spark 1.3?

Meta: Muse Spark 1.3 is cheaper on input at $1.25 per 1M tokens. (via OpenRouter /models, as of Oct 29, 2026.)

### What input types do Anthropic: Claude Fable Latest and Meta: Muse Spark 1.3 support?

Anthropic: Claude Fable Latest accepts text, image, file; Meta: Muse Spark 1.3 accepts text, image, video, file.

## Model details

- [Anthropic: Claude Fable Latest full spec](https://prompeteer.ai/models/anthropic-claude-fable-latest)
- [Meta: Muse Spark 1.3 full spec](https://prompeteer.ai/models/meta-muse-spark-1-3)

[← All AI models](https://prompeteer.ai/models)

[Open the prompt composer, then choose a model →](https://prompeteer.ai/create)

Open the composer and choose a supported target model. The reference catalogue may include models unavailable in the composer.

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Source: https://prompeteer.ai/compare/anthropic-claude-fable-latest-vs-meta-muse-spark-1-3