Back to Voice & realtime
Model comparison
Grok Voice 3.0 vs Grok Voice 2.0
Compare Grok Voice 3.0 and Grok Voice 2.0 using the same provider-sourced voice & realtime rubric. No mystery score and no invented benchmark ranking.
Quick take
Grok Voice 3.0
Grok's realtime voice model for spoken conversations, customer support and assistants that can use tools during a call.
Best for
- Customer-support calls
- Multilingual voice assistants
- Voice agents connected to business tools
Watch out for
Test interruptions, accents and tool failures with real calls. The provider's latency claim is not a guarantee for your complete application; context and knowledge-cutoff limits are not published.
Grok Voice 2.0
Previous-generation Grok voice model, deprecated in favor of Grok Voice 3.0.
Best for
- Realtime voice agents with tools
- Minute-based call-cost planning
- Teams using SpaceXAI's model and search stack
Watch out for
Deprecated: choose Grok Voice 3.0 for new integrations. The grok-voice-latest alias no longer selects this version.
Compare the published facts
Grok Voice 3.0 vs Grok Voice 2.0
Values use each provider's own published units and limits. A blank means the provider did not publish a directly comparable value in the sources reviewed.
| Voice & realtime | Grok Voice 3.0 | Grok Voice 2.0 |
|---|---|---|
| Price basisToken-, character-, or minute-based price for the listed access route. | $0.08 / audio minute | $0.08 / audio minute |
| Interaction modeSpeech-to-speech, audio-to-audio, or streamed text-to-speech behavior. | Realtime speech-to-speech with tools | Realtime speech-to-speech with tools |
| Published latencyProvider-published measurement with its stated exclusions; not a Cody test. | Sub-second provider claim | Sub-second provider claim |
| LanguagesProvider-documented language coverage or a clear unpublished marker. | 20+ languages | Exact supported list not published here |
| Tools & controlNative function calling, reasoning, or speech-control features. | Functions, web/X/file search and remote MCP | Realtime tool use |
| Context or input limitDocumented token or character limit where it is meaningful. | Not published | Not published |
How to choose
Compare the job, not the hype.
Start with the job you need to complete, then validate cost, access, and policy details on your exact provider route.
Grok Voice 3.0
SpaceXAI says it does not train on API inputs or outputs without explicit permission. Default encrypted retention is 30 days; team-level zero data retention is available with feature tradeoffs.
Provider and API links
Grok Voice 2.0
SpaceXAI says it does not train on API inputs or outputs without explicit permission. Default encrypted retention is 30 days; team-level zero data retention is available with feature tradeoffs.
Provider and API links
Frequently asked questions
Grok Voice 3.0 vs Grok Voice 2.0 FAQ
What is the main difference between Grok Voice 3.0 and Grok Voice 2.0?
Grok Voice 3.0: Grok's realtime voice model for spoken conversations, customer support and assistants that can use tools during a call. Grok Voice 2.0: Previous-generation Grok voice model, deprecated in favor of Grok Voice 3.0.
Should I choose Grok Voice 3.0 or Grok Voice 2.0?
Consider Grok Voice 3.0 when your priority is Customer-support calls. Consider Grok Voice 2.0 when your priority is Realtime voice agents with tools. Test both with your own data and provider route before committing.
Is this Grok Voice 3.0 vs Grok Voice 2.0 comparison based on Cody benchmarks?
No. This comparison aligns provider-published facts for the Voice & realtime category. It does not claim a universal winner or combine incompatible third-party benchmark scores.