Kimi K2.6 vs Muse Spark 1.1: Specs & Benchmark Comparison
Kimi K2.6 is developed by Moonshot AI, while Muse Spark 1.1 comes from Meta. Kimi K2.6 was released in April 2026, and Muse Spark 1.1 followed 3 months later in July 2026. Kimi K2.6 has a published size of about 1.0 trillion parameters; Meta has not disclosed the parameter count of Muse Spark 1.1.
The two models share 7 published benchmarks. Muse Spark 1.1 leads on 7 of them. The widest gaps are on Humanity's Last Exam, where Muse Spark 1.1 scores 62.1% against 36.4%; Toolathlon, where Muse Spark 1.1 scores 75.6% against 50.0%. Averaged across everything we track, Kimi K2.6 sits at 71.2% and Muse Spark 1.1 at 70.7%.
On price the two are close: Kimi K2.6 costs $1.20 per million input tokens and $4.50 per million output tokens, Muse Spark 1.1 $1.25 and $4.25. Muse Spark 1.1 takes the larger context window at 1M tokens, compared with 262K for Kimi K2.6. Both accept text and images as input.
| Characteristic | Kimi K2.6 | Muse Spark 1.1 |
|---|---|---|
| Company | Moonshot AI | Meta |
| Release Date | April 20, 2026 | July 9, 2026 |
| Parameters | 1.0T | — |
| Multimodal | Yes | Yes |
| Context (input) | 262K | 1.0M |
| Context (output) | 131K | 131K |
| Input Price / 1M | $1.20 | $1.25 |
| Output Price / 1M | $4.50 | $4.25 |
| Average Score | 71.2% | 70.7% |
| Benchmarks | ||
| Humanity's Last Exam | 36.4% | 62.1% |
| Toolathlon | 50.0% | 75.6% |
| Finance Agent v2 | 44.9% | 57.2% |
| OSWorld-Verified | 73.1% | 81.0% |
| BabyVision | 68.5% | 76.3% |
| SWE-Bench Pro | 58.6% | 61.5% |
| CharXiv-R | 86.7% | 88.0% |
Visual Benchmark Comparison
Verdict
Muse Spark 1.1 leads in 3 out of 4 comparison categories.
Both models show comparable average scores: Kimi K2.6 — 0.7, Muse Spark 1.1 — 0.7.
Muse Spark 1.1 is 1.0x cheaper: input $1.25/1M vs $1.20/1M tokens.
Muse Spark 1.1 supports a larger context: 1M vs 262K tokens.
Muse Spark 1.1 is newer: released 7/9/2026 vs 4/20/2026.
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Frequently Asked Questions
Which is better for coding — Kimi K2.6 or Muse Spark 1.1?
Which model is cheaper — Kimi K2.6 or Muse Spark 1.1?
Which has a larger context window — Kimi K2.6 or Muse Spark 1.1?
The Kimi K2.6 and Muse Spark 1.1 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Kimi K2.6 or Muse Spark 1.1 page. See also the complete list of AI model comparisons.