# Muse Spark 1.3 Contributor vs Mistral Small 4 - AI Model Comparison

- Page: https://opencode.ai/data/compare/meta/muse-spark-1-3-contributor/mistral/mistral-small-2603
- Updated: 2026-10-22T21:28:40.000Z

|  | Muse Spark 1.3 Contributor | Mistral Small 4 |
| --- | --- | --- |
| Lab | Meta | Mistral |
| Context window | 1M | 256K |
| Max output | 131K | 256K |
| Input modalities | text, image, video, pdf, audio | text, image |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Open weights | No | Yes |
| Release date | 2026-09-02 | 2026-03-16 |
| Input price per 1M tokens | $0.10 | $0.15 |
| Output price per 1M tokens | $0.20 | $0.60 |
| Cached input price per 1M tokens | $0.0020 | $0.01 |
| OpenCode tokens: past 2 months | 238T | - |
| Share of all tokens | 21% | - |
| Rank by tokens last week | #3 | - |
| Unique users | 1.5M | - |
| Weekly retention | 69.8% | - |

Model pages: [Muse Spark 1.3 Contributor](https://opencode.ai/data/meta/muse-spark-1-3-contributor.md), [Mistral Small 4](https://opencode.ai/data/mistral/mistral-small-2603.md)

## Methodology

- Updates: Aggregated every hour. Days and weeks use UTC.
- Tokens: Input, output, reasoning, and cached tokens for each request.
- Users and sessions: Approximate counts of distinct users and OpenCode sessions.
- Cost: Session cost is the average cost per OpenCode session. Token prices are list prices from the OpenCode model catalog.
- Retention: The share of a model's users in one week who use it again the next week.
- Citation: Cite OpenCode Data (opencode.ai/data) with the update time shown at the top of the page.