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Ultravox.ai: Speech-native voice AI
Ultravox is a real-time voice AI platform for building fast, fluent conversational experiences.
Powered by a speech-native model as well as developer-friendly APIs and agentic-ready primitives, Ultravox makes it easy to build voice agents that follow instructions reliably, interact with third-party systems effectively, and communicate naturally.
We think useful, productive, and accessible AGI will require models that can operate in the fast-paced, ambiguous world of human voice communication.
Humans are speech-native...AI should be too.
Find us on the web:
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fixie-ai/ultravox-v0_6-llama-3_3-70b
Audio-Text-to-Text • 0.7B • Updated • 1.3k • 14 -
fixie-ai/ultravox-v0_6-gemma-3-27b
Audio-Text-to-Text • 0.7B • Updated • 1.79k • 10 -
fixie-ai/ultravox-v0_6-qwen-3-32b
Audio-Text-to-Text • 0.7B • Updated • 1.56k • 13 -
fixie-ai/ultravox-v0_6-llama-3_1-8b
Audio-Text-to-Text • 0.7B • Updated • 580 • 8
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fixie-ai/ultravox-v0_6-llama-3_3-70b
Audio-Text-to-Text • 0.7B • Updated • 1.3k • 14 -
fixie-ai/ultravox-v0_6-gemma-3-27b
Audio-Text-to-Text • 0.7B • Updated • 1.79k • 10 -
fixie-ai/ultravox-v0_6-qwen-3-32b
Audio-Text-to-Text • 0.7B • Updated • 1.56k • 13 -
fixie-ai/ultravox-v0_6-llama-3_1-8b
Audio-Text-to-Text • 0.7B • Updated • 580 • 8
models 24
fixie-ai/turntaking-multilingual-llama8b-2a
Feature Extraction • 0.7B • Updated • 236 • 1
fixie-ai/ultravox-v0_5-llama-3_1-8b
Audio-Text-to-Text • 0.7B • Updated • 14.5k • 37
fixie-ai/ultravox-v0_5-llama-3_3-70b
Audio-Text-to-Text • 0.7B • Updated • 103 • 32
fixie-ai/ultravox-v0_6-llama-3_1-8b
Audio-Text-to-Text • 0.7B • Updated • 580 • 8
fixie-ai/ultravox-v0_6-qwen-3-32b
Audio-Text-to-Text • 0.7B • Updated • 1.56k • 13
fixie-ai/ultravox-v0_6-gemma-3-27b
Audio-Text-to-Text • 0.7B • Updated • 1.79k • 10
fixie-ai/ultravox-v0_6-llama-3_3-70b
Audio-Text-to-Text • 0.7B • Updated • 1.3k • 14
fixie-ai/ultravox-v0_7-glm-4_6
Audio-Text-to-Text • 0.7B • Updated • 1.37k • 43
fixie-ai/ultravox-v0_5-llama-3_2-1b
Audio-Text-to-Text • 0.7B • Updated • 16.4k • 96
fixie-ai/ultraVAD
Feature Extraction • 0.7B • Updated • 329 • 44
datasets 37
fixie-ai/uv-omni-llasa-long22s
Viewer • Updated • 1.47M • 135
fixie-ai/orpheus_endfiller_1_audiotoken
Viewer • Updated • 1.9k • 20 • 1
fixie-ai/orpheus_midfiller_1_audiotoken
Viewer • Updated • 1.86k • 15
fixie-ai/orpheus_grammar_1_audiotoken
Viewer • Updated • 1.92k • 26
fixie-ai/turntaking-contextual-tts
Viewer • Updated • 400 • 65 • 6
fixie-ai/rime_2
Viewer • Updated • 4.03k • 15
fixie-ai/orpheus_endfiller_1
Viewer • Updated • 1.9k • 19
fixie-ai/orpheus_midfiller_1
Viewer • Updated • 1.86k • 14
fixie-ai/human_convcollector_1
Viewer • Updated • 722 • 14 • 1
fixie-ai/orpheus_grammar_1
Viewer • Updated • 1.92k • 16