Muse Spark 1.3 vs Mistral Medium 3.5

Muse Spark 1.3 vs Mistral Medium 3.5: which AI model is cheaper, has the larger context window and more capabilities? Side-by-side comparison updated daily.

Quick verdict

  • Muse Spark 1.3 is 1.5× cheaper than Mistral Medium 3.5 for the same mix of input and output tokens.
  • Muse Spark 1.3 has the larger context window (1M), useful for long documents and big codebases.
  • Muse Spark 1.3 is the more recent release (Sep 2, 2026).
  • Muse Spark 1.3 scores higher on independent tests (overall index 156.9 vs 141.4).
  • Muse Spark 1.3 is both cheaper and better rated: for most uses it is the better choice.
Muse Spark 1.3Mistral Medium 3.5
CompanyMetaMistral AI
ReleasedSep 2, 2026 ●Apr 30, 2026
Overall index156.9 ●141.4
AIME math99.2%—
FrontierMath74.4%—
Input (per 1M tokens)$1.25 ●$1.50
Output (per 1M tokens)$4.25 ●$7.50
Cost for 1M input + 1M output tokens$5.50 ●$9.00
Providers13 ●
Context1M ●256K
Max output944K ●210K
InputsText, Image, Video, Files ●Text, Image, Files
OutputsTextText
Reasoning✓✓
Tool use✓✓
Structured output✓✓
Open weights——

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