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Granite Speech is IBM’s open-weight speech-to-text family, part of the Granite portfolio. Designed for enterprise transcription with permissive licensing.
See all models from IBMModels in family
4
Open weight
4
API only
0
Avg score
61.7
Top benchmark
—
Total HF downloads
86.6K
Primary modality
Audio
First release
Apr 2025
Latest release
Oct 2026
Every release in the Granite Speech family, ranked by composite score across benchmarks, popularity, efficiency, and versatility.
| # | Model | Modality | Score | Params | Released |
|---|---|---|---|---|---|
| 1 | audio | AA75.0 | — | Oct 2026 | |
| 2 | audio | BB59.8 | 2B | Oct 2026 | |
| 3 | audio | BB57.7 | 3B | Apr 2025 | |
| 4 | audio | CC54.4 | 9B | Apr 2025 |
When each release shipped, newest first. Useful for tracking version cadence.
Oct 21
Composite grades across this family. Higher is better, blending benchmarks, popularity, and efficiency.
Models with downloadable weights, ranked by composite score.
| # | Model | Modality | Score | Params | Released |
|---|---|---|---|---|---|
| 1 | audio | AA75.0 | — | Oct 2026 | |
| 2 | audio | BB59.8 | 2B | Oct 2026 | |
| 3 | audio | BB57.7 | 3B | Apr 2025 | |
| 4 | audio | CC54.4 | 9B | Apr 2025 |
The Granite Speech family is a series of AI models from IBM. This page lists every release in the family with its benchmark scores, parameter count, and hardware requirements.
By composite score, Granite-Speech-5.0-470M-TurboCTC is currently the top model in the family. For local inference, match the parameter count to your VRAM budget. For quality, pick the highest scorer that fits.
See the open-weight section above for models you can run locally. The API-only section lists closed releases that must be accessed through the provider’s API.
Spin up an instance in the cloud, or pick local hardware that fits.
Advertising disclosure: we earn commissions when you shop through the links below.
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GPU Mart
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PPQ.ai
Multi-model inference gateway for production workloads.
Find Local Hardware
See which GPU, Mac, or workstation can run Granite Speech on-prem.
Local LLM Mini PCs
Compact machines that run Granite Speech on your desk. Chosen for local inference.
Benchmark data sourced from: Hugging Face, Arena.ai, Artificial Analysis.
