Model Details
Amazon Nova 2 Sonic
Quick answer: Amazon Nova 2 Sonic is Amazon's April 2025 audio-optimised model scoring 74.5% BFCL and 87.0% Big-Bench Audio. The audio/voice model in the Nova 2 family.
At a Glance
Where Nova 2 Sonic leads
- 87.0% Big-Bench Audio — top audio/speech understanding
- 74.5% BFCL — strong function calling for voice assistants
- Amazon Bedrock integration
Where it lags
- Commercial only: not Apache 2.0
- Specialised: audio/voice only, not general text
Best for: Amazon Bedrock voice assistant deployments; speech-to-tool-call pipelines; BFCL audio-grounded function calling.
What Amazon Nova 2 Sonic Is
Nova 2 Sonic is the audio-specialised model in the Amazon Nova 2 family (April 2025). Unlike Nova 2 Lite/Pro/Micro (text-focused), Sonic is optimised for audio input — speech understanding, voice function calling, and audio Q&A.
Specifications
| Field | Value |
|---|---|
| Organization | Amazon |
| License | Commercial (Amazon Bedrock) |
| Release date | April 2025 |
| Modality | Audio + Text |
Pricing
Available via Amazon Bedrock. Per-character pricing; refer to AWS Bedrock Nova 2 pricing.
Public Benchmark Scores
| Benchmark | Score | Source | Date |
|---|---|---|---|
| BFCL | 74.5% | Benchgen evaluation | 2025-04 |
| Big-Bench Audio | 87.0% | Benchgen evaluation | 2025-04 |
Nova 2 Sonic vs Alternatives
| Model | BFCL | Big-Bench Audio | Modality |
|---|---|---|---|
| Nova 2 Sonic | 74.5% | 87.0% | Audio + Text |
| Nova 2 Pro | 83.8% | — | Text + Vision |
| Nova 2 Lite | 78.5% | — | Text |
Nova 2 Sonic is the audio specialist; Nova 2 Pro leads on BFCL (83.8%) for text tool use.
Related Models & Benchmarks
- Compare: Nova 2 Pro · Nova 2 Lite
- Benchmarks: BFCL-v3 · MMAU
Frequently Asked Questions
What is Amazon Nova 2 Sonic?
Amazon's April 2025 audio-specialised model scoring 74.5% BFCL, 87.0% Big-Bench Audio. Commercial Bedrock — speech-to-action.Specs from Amazon's Nova 2 Sonic release (April 2025) and Benchgen evaluations. Last updated 2026-07-24.
Benchmark Leaderboards
This model isn’t on any benchmark leaderboard yet.