Compare DeepSeek V4.1 Flash from DeepSeek and Muse Spark Open from Meta on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the OpenRouter API.




| Attribute | DeepSeek V4.1 Flash | Muse Spark Open |
|---|---|---|
| Input price | $0.035/M tokens | $1.25/M tokens |
| Output price | $0.315/M tokens | $4.25/M tokens |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Intelligence Index | Not available | 24.9 |
| Coding Index | Not available | Not available |
| Agentic Index | Not available | Not available |
| Latency (p50) | 0.83 s | Not available |
| Throughput (p50) | 49.0 tok/s | Not available |
| Provided by | DeepSeek | Meta |
| Model page | DeepSeek V4.1 Flash model details, providers and pricing | Muse Spark Open model details, providers and pricing |
Benchmark data updated
DeepSeek V4.1 Flash is cheaper than Muse Spark Open on OpenRouter: DeepSeek V4.1 Flash costs $0.035/M tokens input and $0.315/M tokens output, while Muse Spark Open costs $1.25/M tokens input and $4.25/M tokens output.
DeepSeek V4.1 Flash and Muse Spark Open have the same context window of 1,048,576 tokens.