Muse Spark Open vs Seed 2.0 Pro
Muse Spark Open and Seed 2.0 Pro are closely matched at 44.9 and 39.3 on the LLM Stats Score. Seed 2.0 Pro is 1.8x cheaper per token.
Meta · ByteDance · Updated for 2026
Which is better?
Muse Spark Open and Seed 2.0 Pro are closely matched on the overall LLM Stats Score at 44.9 and 39.3.
In the 1 individual benchmarks reported for both models, Muse Spark Open wins 1; this is a narrower head-to-head signal than the composite indexes.
On price, Seed 2.0 Pro is roughly 1.8x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.
Muse Spark Open also accepts a larger context window (1,048,576 input tokens), making it the stronger choice for long documents and large codebases.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Muse Spark Open
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you process long inputs — it offers a 1,048,576 token context window
- you want the most recent training data — it shipped Oct 2026
- you need open weights you can self-host or fine-tune
Choose Seed 2.0 Pro
- cost matters — it's about 1.8x cheaper per token
At a glance
The differences that matter most.
Capability indexes
Additional strengths measured across groups of related public benchmarks
Individual benchmarks
17 reported for Muse Spark Open · 6 for Seed 2.0 Pro
Muse Spark Open outperforms in 1 benchmarks (GPQA), while Seed 2.0 Pro is better at 0 benchmarks.
Muse Spark Open significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Pricing Analysis
Price comparison per million tokens
For input processing, Muse Spark Open ($1.25/1M tokens) is 2.5x more expensive than Seed 2.0 Pro ($0.50/1M tokens).
For output processing, Muse Spark Open ($4.25/1M tokens) is 1.4x more expensive than Seed 2.0 Pro ($3.00/1M tokens).
In conclusion, Muse Spark Open is more expensive than Seed 2.0 Pro.*
* Using a 3:1 ratio of input to output tokens
Context Window
Maximum input and output token capacity
Muse Spark Open accepts 1,048,576 input tokens compared to Seed 2.0 Pro's 256,000 tokens. Muse Spark Open can generate longer responses up to 1,048,576 tokens, while Seed 2.0 Pro is limited to 131,072 tokens.
Input capabilities
Documented input modalities across available providers
Both Muse Spark Open and Seed 2.0 Pro support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Muse Spark Open
Seed 2.0 Pro
License
Usage and distribution terms
Muse Spark Open is licensed under Muse Model License, while Seed 2.0 Pro uses a proprietary license.
License differences may affect how you can use these models in commercial or open-source projects.
Muse Model License
Open weights
Proprietary
Closed source
Release Timeline
When each model was launched
Muse Spark Open was released on 2026-10-15, while Seed 2.0 Pro was released on 2026-02-14.
Muse Spark Open is 8 months newer than Seed 2.0 Pro.
Oct 15, 2026
4 days ago
8mo newerFeb 14, 2026
8 months ago
Knowledge Cutoff
When training data ends
Seed 2.0 Pro has a documented knowledge cutoff of 2024-01-01, while Muse Spark Open's cutoff date is not specified.
We can confirm Seed 2.0 Pro's training data extends to 2024-01-01, but cannot make a direct comparison without Muse Spark Open's cutoff date.
—
Jan 2024
Provider Availability
Muse Spark Open is available from Together. Seed 2.0 Pro is available from DeepInfra.
Muse Spark Open
Seed 2.0 Pro
Outputs Comparison
Judge for yourself.
Run your own prompts against Muse Spark Open and Seed 2.0 Pro side-by-side, then vote on the output you prefer.
FAQ
Common questions about Muse Spark Open vs Seed 2.0 Pro.