VibeVoice ASR Streaming 1.5B vs GPT-4o
At a Glance
| Compare |  VibeVoice ASR Streaming 1.5BMicrosoft |  GPT-4oOpenAI |
|---|---|---|
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | Not reported | $1.25Openrouter ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | Not reported | $5.00Openrouter ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | Not reported | 128K |
| Model facts checked | Sep 2, 2026View model evidence → | Aug 29, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | VibeVoice-ASR-Streaming-1.5B | GPT-4o |
|---|---|---|
| Developer | Microsoft | OpenAI |
| Family | Vibevoice ASR Streaming | Gpt 4o |
| Model | VibeVoice-ASR-Streaming-1.5B | GPT-4o |
| Version | VibeVoice-ASR-Streaming-1.5B | GPT-4o |
| Lifecycle | active | active |
| Released | 2026-09-03 | Unknown |
| Knowledge cutoff | Unknown | 2023-10-01 |
| Input modalities | Audio | Text, Image |
| Output modalities | Text | Text |
| Context window | Unknown | 128K |
| Total parameters | 2.8B | Unknown |
| Active parameters | Unknown | Unknown |
| License | mit | Unknown |
| Open weights | Yes | No |
| API available | No | Yes |
| Self-hostable | Yes | No |
| Provider access | Unknown | Openai (Standard), Openrouter (Standard) |
| Capabilities | diarization, hotwords, multilingual, streaming, transcription | chat, generation, tools |
| Streaming chunk | 22 frames | Unknown |
| Streaming lookahead | 4 frames | Unknown |
| Supported languages | Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Spanish | Unknown |
| Target sample rate | 24000 Hz | Unknown |
VibeVoice ASR Streaming 1.5B Capabilities
GPT-4o Capabilities
Related Comparisons
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|---|---|---|---|
VibeVoice-ASR-Streaming-1.5BMicrosoft | vs | GPT-6 AstraOpenAI | cross-developer peerstext |
Claude Fable 5.1Anthropic | vs | VibeVoice-ASR-Streaming-1.5BMicrosoft | cross-developer peerstext |
 Gemini 3.1 ProGoogle DeepMind | vs | VibeVoice-ASR-Streaming-1.5BMicrosoft | cross-developer peerstext |
 DeepSeek-V4.1-FlashDeepSeek | vs | VibeVoice-ASR-Streaming-1.5BMicrosoft | cross-developer peerstext |
VibeVoice-ASR-Streaming-1.5BMicrosoft | vs | Grok 4.6xAI | cross-developer peerstext |
VibeVoice-ASR-Streaming-1.5BMicrosoft | vs |  Qwen3.8-MaxQwen | cross-developer peerstext |
VibeVoice-ASR-Streaming-1.5BMicrosoft | vs |  Kimi-K3Moonshot AI | cross-developer peerstext |
 MiniMax-M3MiniMax | vs | VibeVoice-ASR-Streaming-1.5BMicrosoft | cross-developer peerstext |
VibeVoice-ASR-Streaming-1.5BMicrosoft | vs |  GLM-5.3Z.ai | cross-developer peerstext |
VibeVoice-ASR-Streaming-1.5BMicrosoft | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 2.1 ProByteDance Seed | vs | VibeVoice-ASR-Streaming-1.5BMicrosoft | cross-developer peerstext |
VibeVoice-ASR-Streaming-1.5BMicrosoft | vs |  Mistral Large 3Mistral AI | cross-developer peerstext |
Primary Evidence
Sources and Freshness
Questions
VibeVoice ASR Streaming 1.5B vs GPT-4o FAQs
Is VibeVoice ASR Streaming 1.5B or GPT-4o better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both VibeVoice ASR Streaming 1.5B and GPT-4o, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, VibeVoice ASR Streaming 1.5B or GPT-4o?+
Only GPT-4o has a directly sourced input price: $1.25 per million tokens. Only GPT-4o has a directly sourced output price: $5.00 per million tokens.
Which has a larger context window, VibeVoice ASR Streaming 1.5B or GPT-4o?+
Neither model has a larger sourced context window in this comparison. VibeVoice ASR Streaming 1.5B is — and GPT-4o is 128K.
Which performs better in benchmarks, VibeVoice ASR Streaming 1.5B or GPT-4o?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can VibeVoice ASR Streaming 1.5B or GPT-4o be self-hosted?+
VibeVoice ASR Streaming 1.5B is the only model in this pair currently marked as self-hostable. VibeVoice ASR Streaming 1.5B is open weight; GPT-4o is not marked open weight.
Can VibeVoice ASR Streaming 1.5B and GPT-4o understand images?+
VibeVoice ASR Streaming 1.5B is not documented with image input; GPT-4o is documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, VibeVoice ASR Streaming 1.5B or GPT-4o?+
Neither has a larger sourced maximum output. VibeVoice ASR Streaming 1.5B is — and GPT-4o is 16K.
Do VibeVoice ASR Streaming 1.5B and GPT-4o support reasoning and tool use?+
VibeVoice ASR Streaming 1.5B: none of these features are definitively sourced. GPT-4o: tool calling and image input. Feature support does not establish relative quality.
Which is available from more inference providers, VibeVoice ASR Streaming 1.5B or GPT-4o?+
VibeVoice ASR Streaming 1.5B has 0 sourced provider routes; GPT-4o has 2, so GPT-4o has broader tracked availability.
Which offers better value, VibeVoice ASR Streaming 1.5B or GPT-4o?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.