Grok Voice 3.0 vs Nova 2 Sonic
Grok Voice 3.0 significantly outperforms across most benchmarks.
xAI · Amazon · Updated for 2026
Which is better?
Grok Voice 3.0 and Nova 2 Sonic trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.
In the 1 individual benchmarks reported for both models, Grok Voice 3.0 wins 1; this is a narrower head-to-head signal than the composite indexes.
Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.
Choose Grok Voice 3.0
- you value its reported benchmark strengths — it wins 1 of 1 exact shared results
- you want the most recent training data — it shipped Oct 2026
Choose Nova 2 Sonic
- you want predictable pricing at $0.33/M input and $2.75/M output
At a glance
The differences that matter most.
Individual benchmarks
1 reported for Grok Voice 3.0 · 4 for Nova 2 Sonic
Grok Voice 3.0 outperforms in 1 benchmarks (Big Bench Audio), while Nova 2 Sonic is better at 0 benchmarks.
Grok Voice 3.0 significantly outperforms across most benchmarks.
Human preference
Blind head-to-head votes and playground preference scores
Context Window
Maximum input and output token capacity
Only Nova 2 Sonic specifies input context (1,000,000 tokens). Only Nova 2 Sonic specifies output context (65,536 tokens).
Input capabilities
Documented input modalities across available providers
Both Grok Voice 3.0 and Nova 2 Sonic support multimodal inputs.
They are both capable of processing various types of data, offering versatility in application.
Grok Voice 3.0
Nova 2 Sonic
License
Usage and distribution terms
Both models are licensed under proprietary licenses.
Both models have usage restrictions defined by their respective organizations.
Proprietary
Closed source
Proprietary
Closed source
Release Timeline
When each model was launched
Grok Voice 3.0 was released on 2026-10-14, while Nova 2 Sonic was released on 2025-12-02.
Grok Voice 3.0 is 11 months newer than Nova 2 Sonic.
Oct 14, 2026
3 weeks ago
10mo newerDec 2, 2025
11 months ago
Knowledge Cutoff
When training data ends
Neither model specifies a knowledge cutoff date.
Unable to compare the recency of their training data.
Provider Availability
Grok Voice 3.0 is available from xAI. Nova 2 Sonic is available from Bedrock.
Grok Voice 3.0
Nova 2 Sonic
Outputs Comparison
Judge for yourself.
Run your own prompts against Grok Voice 3.0 and Nova 2 Sonic side-by-side, then vote on the output you prefer.
FAQ
Common questions about Grok Voice 3.0 vs Nova 2 Sonic.