Comparison
sherpa-onnx vs dia2
Verdict
Pick sherpa-onnx when sherpa-onnx is primarily C++; dia2 is Python; pick dia2 when dia2 is primarily Python; sherpa-onnx is C++.
Markdown twin · sherpa-onnx alternatives · dia2 alternatives
GraphCanon updated 3w
Trust & integrity
| Signal | sherpa-onnx | dia2 |
|---|---|---|
| Maintenance | Very active (0d since push) As of 4w · github_public_v1 | Slowing (243d since push) As of 3w · github_public_v1 |
| Provenance | Not a fork · Organization account As of 4w · github_public_v1 | Not a fork · Organization account As of 3w · github_public_v1 |
| OSV dependency advisories | No lockfile (source not queried) As of 1mo · osv@v1 | No lockfile (source not queried) As of 1mo · osv@v1 |
| deps.dev advisories | Not queried deps.dev@v1 | Not queried deps.dev@v1 |
| OpenSSF Scorecard | Not queried openssf-scorecard@v1 | Not queried openssf-scorecard@v1 |
Tagline
- sherpa-onnx
- Speech-to-text and related audio processing tools using ONNX with cross-platform support
- dia2
- TTS model capable of streaming conversational audio in real-time.
Stars
- sherpa-onnx
- 14k
- dia2
- 1.2k
Forks
- sherpa-onnx
- 1.6k
- dia2
- 99
Open issues
- sherpa-onnx
- 617
- dia2
- 5
Language
- sherpa-onnx
- C++
- dia2
- Python
Adopt for
- sherpa-onnx
- sherpa-onnx offers local speech-to-text processing across multiple platforms including embedded systems with NPUs, supporting wide programming languages.
- dia2
- -
Persona
- sherpa-onnx
- -
- dia2
- -
Runtime
- sherpa-onnx
- -
- dia2
- -
License
- sherpa-onnx
- Apache-2.0
- dia2
- Apache-2.0
Last pushed
- sherpa-onnx
- Jul 29, 2026
- dia2
- Nov 29, 2025
Categories
- sherpa-onnx
- Speech & Audio
- dia2
- Speech & Audio
Trust and health
Maintenance
- sherpa-onnx
- Very active (96%)
- dia2
- Slowing (36%)
Days since push
- sherpa-onnx
- 0d
- dia2
- 243d
Open issues (now)
- sherpa-onnx
- 617
- dia2
- 5
Full report
- sherpa-onnx
- Trust report
- dia2
- Trust report
Choose sherpa-onnx if…
- sherpa-onnx is primarily C++; dia2 is Python.
- Tags unique to sherpa-onnx: aarch64, android, arm32, asr.
- When you need to deploy speech recognition or synthesis on platforms such as Raspberry Pi, RISC-V, and with NPUs like Rockchip, Axera, Ascend
When NOT to use sherpa-onnx
- If your project strictly requires real-time web service interaction or server-based speech-to-text solutions
- When the target environment lacks support for ONNX runtime and specific NPUs integrated within sherpa-onnx
Choose dia2 if…
- dia2 is primarily Python; sherpa-onnx is C++.
- Tags unique to dia2: open-weight, text-to-speech.
- When you need real-time streaming capabilities for text-to-speech applications.
When NOT to use dia2
- For projects aimed at batch processing or non-realtime TTS applications where instantaneous audio output isn't required.
- If you are looking for an open-source model that does not include specific proprietary components like the Kyutai Mimi codec.
Explore
Sources
Every stat on this page traces to a dated GitHub sync, license file, enrichment field, or trust scan.
- GitHub stars (k2-fsa/sherpa-onnx) · observed Jul 29, 2026
- GitHub forks (k2-fsa/sherpa-onnx) · observed Jul 29, 2026
- Last push (k2-fsa/sherpa-onnx) · observed Jul 29, 2026
- License file (Apache-2.0) · observed Jul 29, 2026
- Decision facts (enrichment) · observed Jul 16, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
- GitHub stars (nari-labs/dia2) · observed Jul 30, 2026
- GitHub forks (nari-labs/dia2) · observed Jul 30, 2026
- Last push (nari-labs/dia2) · observed Nov 29, 2025
- License file (Apache-2.0) · observed Jul 30, 2026
- Decision facts (enrichment) · observed Jul 12, 2026
- Trust scan (lockfile / OSV) · observed Jul 11, 2026
GitHub stars on cards: sherpa-onnx 14k · dia2 1.2k (synced Jul 29, 2026).
Common questions
- What is the difference between sherpa-onnx and dia2?
- sherpa-onnx: Speech-to-text and related audio processing tools using ONNX with cross-platform support. dia2: TTS model capable of streaming conversational audio in real-time.. See the comparison table for live GitHub stats and shared categories.
- When should I choose sherpa-onnx over dia2?
- Choose sherpa-onnx over dia2 when sherpa-onnx is primarily C++; dia2 is Python; Tags unique to sherpa-onnx: aarch64, android, arm32, asr; When you need to deploy speech recognition or synthesis on platforms such as Raspberry Pi, RISC-V, and with NPUs like Rockchip, Axera, Ascend.
- When should I choose dia2 over sherpa-onnx?
- Choose dia2 over sherpa-onnx when dia2 is primarily Python; sherpa-onnx is C++; Tags unique to dia2: open-weight, text-to-speech; When you need real-time streaming capabilities for text-to-speech applications.
- When should I avoid sherpa-onnx?
- If your project strictly requires real-time web service interaction or server-based speech-to-text solutions When the target environment lacks support for ONNX runtime and specific NPUs integrated within sherpa-onnx
- When should I avoid dia2?
- For projects aimed at batch processing or non-realtime TTS applications where instantaneous audio output isn't required. If you are looking for an open-source model that does not include specific proprietary components like the Kyutai Mimi codec.
- Is sherpa-onnx or dia2 more popular on GitHub?
- sherpa-onnx has more GitHub stars (13,842 vs 1,160). Stars measure visibility, not whether either tool fits your constraints.
- Are sherpa-onnx and dia2 open source?
- Yes - both are open-source projects on GitHub (sherpa-onnx: Apache-2.0, dia2: Apache-2.0).
- Where can I find alternatives to sherpa-onnx or dia2?
- GraphCanon lists graph-backed alternatives at sherpa-onnx alternatives and dia2 alternatives (sherpa-onnx markdown twin, dia2 markdown twin), ranked by typed relationship edges rather than popularity votes.
- Is there a machine-readable version of this comparison?
- Yes. The markdown twin at this comparison mirrors this page for agents and LLM crawlers, with the same stats table and FAQ answers.
- Which is better maintained, sherpa-onnx or dia2?
- sherpa-onnx: Very active. dia2: Slowing. Compare maintenance labels, days since push, and release cadence in the trust section below - stars alone do not measure maintenance.
- Where are the full trust reports for sherpa-onnx and dia2?
- GraphCanon publishes per-repo trust reports with dated maintenance, provenance, and scan summaries: sherpa-onnx trust report; dia2 trust report.