Granite Speech 4.1 2B

Apr 2026
Granite Speech 4.1 2B
Compare in
on
self-host onlyprice
6.4Open ASR
Apr 2026released
en, es, fr +3Languages

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
···
26Granite 4.0 1B Speech66727Granite Speech 4.1 2B546.828OmniASR CTC 7B v2522.3

Alternatives?

ModelScoreCostPriceWhat changes
BetterWhisper Large v3 TurboOpen+48%—$0.001Memory (4-bit): not verifiedOpenGranite Speech 4.1 2B Nar×3.9——Languages: loses jaBetterCanary Qwen 2.5B, NVIDIAOpen+61%—$0.001Languages: loses es, fr, de +2+1BetterParakeet TDT 0.6B V3, TogetheraiOpen×11.4—$0.002Memory (4-bit): not verifiedBetterGranite Speech 5.0 470M TurboctcOpen×38.6——Languages: loses es, fr, de +2+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 WER6.4#28
Open ASR · RTFx546.8#27
Open ASR · AMI Cleaned WER7.1#10
Open ASR · Earnings-22 Cleaned AA Chunked WER6.7#22
Open ASR · GigaSpeech Cleaned WER8.2#31
Open ASR · LibriSpeech Clean WER1#8
Open ASR · LibriSpeech Other WER2.2#9
Open ASR · SPGISpeech WER3.5#47
Open ASR · URGENT 2024 WER11.3#15
Open ASR · Voice Arena Monsoon WER4.1#27
Open ASR · VoxPopuli AA Cleaned WER4.2#40
Open ASR · AMI WER7.7#2
Open ASR · Earnings-22 WER8.2#5
Open ASR · GigaSpeech WER8.2#13
Open ASR · VoxPopuli WER5.4#4
Open ASR · URGENT 2024 Clean WER5#14

FAQ

How much does Granite Speech 4.1 2B cost?›

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

Is Granite Speech 4.1 2B free to use?›

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

How good is Granite Speech 4.1 2B, and what is it best at?›

#28 of 61 in Speech to text.

Is Granite Speech 4.1 2B better than Granite 4.0 1B Speech?›

On Open ASR · RTFx, Granite Speech 4.1 2B scores 546.8 vs 667 — lower.

When was Granite Speech 4.1 2B released? Is there a newer version?›

Released 2026-04-16. It is the current version in its line.

Is Granite Speech 4.1 2B open source?›

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

Can I run Granite Speech 4.1 2B locally?›

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

What is Granite Speech 4.1 2B?›

Granite Speech 4.1 2B is an open-weights speech & voice model from IBM, released Apr 2026.

What are the best alternatives to Granite Speech 4.1 2B?›

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