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
OpenRouter model catalogue feed
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
Open the prompt composer, then choose a model →
Open the composer and choose a supported target model. The reference catalogue may include models unavailable in the composer.