Granite Speech 3.3 2B

Apr 2025
Granite Speech 3.3 2B
Compare in
on
self-host onlyprice
5.4Open ASR
Apr 2025released
en, es, fr +2Languages

Ranking?

Full ranking →
1Granite Speech 5.0 470M Turboctc21,134.32Granite Speech 5.0 470M Turboctc Nc20,801.33Zipformer-cr-ctc-transducer-XL-290M (fast-gpu-asr, transducer_modified_beam_search)19,289.74Niagara 9M Batch.en7,2175Parakeet TDT 0.6B V3, Togetherai6,227.7
···
28OmniASR CTC 7B v2522.329Granite Speech 3.3 2B509.430Fun ASR Nano 2512 Hf506.4

Alternatives?

ModelScoreCostPriceWhat changes
BetterWhisper Large v3 TurboOpen+59%—$0.001Memory (4-bit): not verifiedOpenGranite Speech 4.1 2B Nar×4.1——BetterCanary Qwen 2.5B, NVIDIAOpen+73%—$0.001Languages: loses es, fr, de, ptBetterParakeet TDT 0.6B V3, TogetheraiOpen×12.2—$0.002Memory (4-bit): not verifiedBetterGranite Speech 5.0 470M TurboctcOpen×41.5——Languages: loses es, fr, de, pt+1

Run it yourself

estimate
Fits on✓ 8 GB (phone, laptop) · full quality✓ 16 GB · full quality✓ 24 GB GPU · full quality✓ 48 GB GPU · full quality✓ 80 GB GPU · full quality
LicenceApache-2.0free for commercial use

History

2 versions
510520530540550Jul 25Oct 25Jan 26Apr 26Release dateOpen ASR · RTFx3.34.1
510520530540550Jul 25Jan 26Release dateOpen ASR · RTFx3.34.1

Benchmarks

in Speech & Voice
Open ASR · average WER5.4#10
Open ASR · RTFx509.4#29
Open ASR · AMI Cleaned WER7.8#18
Open ASR · Earnings-22 Cleaned AA Chunked WER9.1#44
Open ASR · GigaSpeech Cleaned WER9#49
Open ASR · LibriSpeech Clean WER1.2#19
Open ASR · LibriSpeech Other WER2.9#26
Open ASR · SPGISpeech WER3.5#49
Open ASR · Voice Arena Monsoon WER4.8#41
Open ASR · VoxPopuli AA Cleaned WER4.5#51
Open ASR · AMI WER8.5#8
Open ASR · Earnings-22 WER9.7#17
Open ASR · GigaSpeech WER9.1#26
Open ASR · VoxPopuli WER5.6#10

FAQ

How much does Granite Speech 3.3 2B cost?›

There is no per-unit API price: self-host only.

Is Granite Speech 3.3 2B free to use?›

There is no free API. The weights are open, so you can run it yourself.

How good is Granite Speech 3.3 2B, and what is it best at?›

#10 of 61 in Speech to text.

Is Granite Speech 3.3 2B better than OmniASR CTC 7B v2?›

On Open ASR · RTFx, Granite Speech 3.3 2B scores 509.4 vs 522.3 — lower.

When was Granite Speech 3.3 2B released? Is there a newer version?›

Released 2025-04-28. It is the current version in its line.

Is Granite Speech 3.3 2B open source?›

Yes, the weights are open (Apache-2.0 licence).

Can I run Granite Speech 3.3 2B locally?›

The weights are open and can be self-hosted; hardware needs are not confirmed yet.

What is Granite Speech 3.3 2B?›

Granite Speech 3.3 2B is an open-weights speech & voice model from IBM, released Apr 2025.

What are the best alternatives to Granite Speech 3.3 2B?›

Whisper Large v3 Turbo (better), Granite Speech 4.1 2B Nar (open weights).