Sparrow-1
Audio-native model for human-level turn-taking without ASR
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For the past year I've been working to rethink how AI manages timing in conversation at Tavus. I've spent a lot of time listening to conversations. Today we're announcing the release of Sparrow-1, the most advanced conversational flow model in the world.Some technical details:- Predicts conversational floor ownership, not speech endpoints- Audio-native streaming model, no ASR dependency- Human-timed responses without silence-based delays- Zero interruptions at sub-100ms median latency- In benchmarks Sparrow-1 beats all existing models at real world turn-taking baselinesI wrote more about the work here: https://www.tavus.io/post/sparrow-1-human-level-conversation...
HN · launched Jan 14, 2026 · 123 upvotes (top 8%) · 0 views
Niche: speech and voice ai models · 143 launches, 7 in the last 7 days ▼ -30% · Explore this niche →
Category and tags
- Horizontal
- Model & infra
- B2B
- AI-native
- Commercial product
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More like this: all 143 launches in speech and voice ai models →
Could you build this?
No Sparrow-1 is a custom, audio-native deep learning model trained from scratch or heavily fine-tuned on raw audio waveforms to predict conversational turn-taking and prosody without standard ASR latency.
What it would actually take: Building this requires novel ML research in acoustic modeling, massive curated datasets of multi-speaker conversational audio with millisecond-accurate turn-taking annotations, and specialized model architectures (like streaming transformers or state-space models). It necessitates a team of speech/audio ML research scientists and substantial GPU compute clusters for training and low-latency inference optimization.
Discussion
20 comments analyzed.
Competitors mentioned: Krisp turn-taking models, OpenAI (tool calling, multi-modality, platform), Anthropic Claude (coding, LLMs), Google Gemini (voice interface, science applications)
Concerns raised: No direct API access to model without Persona/Replica wrapper, Slower response times in full pipeline vs. isolated turn-taking measurements, LLM tendency to give long responses before user turn, Potential misuse with elderly users as companions
Feature requests: Model size and FLOPS specifications, Direct API calls to Sparrow-1 model, Evaluation on Krisp End-of-Turn Test dataset
Competitors
Other products that read as similar to this one : 235 launches clear the similarity bar, closest 8 shown.
Attention rank: #31 of 236 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 76 days after the earliest competitor.
- Sparrow-2 · hn · 2026-09-08 · 11 upvotes · similarity 0.77
- Nari Qwen3-TTS and Qwen3-ASR · hn · 2026-09-14 · 90 upvotes · similarity 0.48
- echoparley · github · 2026-10-14 · 22 upvotes · similarity 0.48
- Speko: OpenRouter for Voice · yc · 2026-07-29 · 14 upvotes · similarity 0.47
- Griffin by Tavus · ph · 2026-10-08 · 133 upvotes · similarity 0.46
- Parrot Speech-to-text API · ph · 2026-05-26 · 194 upvotes · similarity 0.46
- Speko · ph · 2026-08-27 · 266 upvotes · similarity 0.46
- Hurston-1 open source TTS that speak Southern American and Afro-English · hn · 2026-10-25 · 68 upvotes · similarity 0.45
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