Head-to-Head Comparison

Sesame AI (CSM) vs ElevenLabs

Compare Sesame AI (CSM) and ElevenLabs side by side. See which text-to-speech platform is better for your needs in 2025.

S

Sesame AI (CSM)

4.4/5
startup

Conversational Speech Model for emotionally intelligent, human-like AI speech.

E

ElevenLabs

4.8/5
premium

Industry-leading AI voice synthesis with ultra-realistic speech generation and instant voice cloning.

Feature Comparison

FeatureSesame AI (CSM)ElevenLabs
Rating
4.4/54.8/5
Starting Price
Free tier availableFree tier available
Languages
1+29+
Voice Cloning
API Available
Free Tier
Enterprise Plan

Pros & Cons

Sesame AI (CSM)

Pros

  • • Most natural conversational AI
  • • Emotional intelligence
  • • Open-source model available
  • • Novel approach to TTS
  • • Great for AI companions

Cons

  • • Very new technology
  • • Limited voices currently
  • • Higher compute requirements

ElevenLabs

Pros

  • • Best-in-class voice quality
  • • Fast voice cloning with minimal samples
  • • Comprehensive API documentation
  • • Active community and support
  • • Regular model improvements

Cons

  • • Higher pricing than competitors
  • • Character limits on lower tiers
  • • Voice cloning requires verification

Other Comparisons

Sesame AI (CSM) vs Dia (Nari Labs)
Sesame AI (CSM) vs Chatterbox (Resemble AI)
Sesame AI (CSM) vs OpenAI TTS

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