Muse Spark 1.1 vs Seed 2.1 Turbo: Specs & Benchmark Comparison
Muse Spark 1.1 is developed by Meta, while Seed 2.1 Turbo comes from ByteDance. Seed 2.1 Turbo was released in June 2026, and Muse Spark 1.1 followed a month later in July 2026.
The two models share 7 published benchmarks. Muse Spark 1.1 leads on 7 of them. The widest gaps are on Toolathlon, where Muse Spark 1.1 scores 75.6% against 49.1%; BabyVision, where Muse Spark 1.1 scores 76.3% against 62.9%. Averaged across everything we track, Muse Spark 1.1 sits at 70.7% and Seed 2.1 Turbo at 61.0%.
Muse Spark 1.1 is available through an API at $1.25 per million input tokens with a 1M-token context window. We do not track a hosted API for Seed 2.1 Turbo, so pricing and context cannot be compared directly.
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| Characteristic | Muse Spark 1.1 | Seed 2.1 Turbo |
|---|---|---|
| Company | Meta | ByteDance |
| Release Date | July 9, 2026 | June 24, 2026 |
| Parameters | — | — |
| Multimodal | Yes | Yes |
| Context (input) | 1.0M | — |
| Context (output) | 131K | — |
| Input Price / 1M | $1.25 | — |
| Output Price / 1M | $4.25 | — |
| Average Score | 70.7% | 61.0% |
| Benchmarks | ||
| Toolathlon | 75.6% | 49.1% |
| BabyVision | 76.3% | 62.9% |
| Terminal-Bench 2.1 | 80.0% | 67.6% |
| MCP Atlas | 88.0% | 80.3% |
| Humanity's Last Exam | 62.1% | 54.6% |
| SWE-Bench Pro | 61.5% | 57.0% |
| CharXiv-R | 88.0% | 83.6% |
Visual Benchmark Comparison
Verdict
Muse Spark 1.1 leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Muse Spark 1.1 — 0.7, Seed 2.1 Turbo — 0.6.
Muse Spark 1.1 is newer: released 7/9/2026 vs 6/24/2026.
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Frequently Asked Questions
Which is better for coding — Muse Spark 1.1 or Seed 2.1 Turbo?
Which model is cheaper — Muse Spark 1.1 or Seed 2.1 Turbo?
Which has a larger context window — Muse Spark 1.1 or Seed 2.1 Turbo?
The Muse Spark 1.1 and Seed 2.1 Turbo comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Muse Spark 1.1 or Seed 2.1 Turbo page. See also the complete list of AI model comparisons.