Seed 1.8 vs VibeVoice ASR Streaming 1.5B
At a Glance
| Compare | Seed 1.8ByteDance Seed |  VibeVoice ASR Streaming 1.5BMicrosoft |
|---|---|---|
| Pricing and Limits | ||
| Context windowMaximum documented tokens | Not reported | Not reported |
| Model facts checked | Sep 3, 2026View model evidence → | Sep 2, 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 | Seed 1.8 | VibeVoice-ASR-Streaming-1.5B |
|---|---|---|
| Developer | ByteDance Seed | Microsoft |
| Family | Seed 1 8 | Vibevoice ASR Streaming |
| Model | Seed 1.8 | VibeVoice-ASR-Streaming-1.5B |
| Version | Seed 1.8 | VibeVoice-ASR-Streaming-1.5B |
| Lifecycle | active | active |
| Released | Unknown | 2026-09-03 |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Audio |
| Output modalities | Text | Text |
| Context window | Unknown | Unknown |
| Total parameters | Unknown | 2.8B |
| Active parameters | Unknown | Unknown |
| License | Unknown | mit |
| Open weights | No | Yes |
| API available | Yes | No |
| Self-hostable | No | Yes |
| Provider access | Unknown | Unknown |
| Capabilities | chat, generation, reasoning, tools | diarization, hotwords, multilingual, streaming, transcription |
| Streaming chunk | Unknown | 22 frames |
| Streaming lookahead | Unknown | 4 frames |
| Supported languages | Unknown | Chinese, English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Spanish |
| Target sample rate | Unknown | 24000 Hz |
Seed 1.8 Capabilities
VibeVoice ASR Streaming 1.5B Capabilities
Related Comparisons
All text comparisons →| A | Pair | B | Context |
|---|---|---|---|
Seed 1.8ByteDance Seed | vs |  GPT-6 AstraOpenAI | cross-developer peersimage, text |
Claude Fable 5.1Anthropic | vs | Seed 1.8ByteDance Seed | cross-developer peersimage, text |
Seed 1.8ByteDance Seed | vs |  Gemini 3.1 ProGoogle DeepMind | cross-developer peerstext |
Seed 1.8ByteDance Seed | vs |  DeepSeek-V4.1-FlashDeepSeek | cross-developer peersimage, text |
Seed 1.8ByteDance Seed | vs | Grok 4.6xAI | cross-developer peersimage, text |
Seed 1.8ByteDance Seed | vs |  Qwen3.8-MaxQwen | cross-developer peersimage, text |
Seed 1.8ByteDance Seed | vs |  Kimi-K3Moonshot AI | cross-developer peersimage, text |
 MiniMax-M3MiniMax | vs | Seed 1.8ByteDance Seed | cross-developer peersimage, text |
Seed 1.8ByteDance Seed | vs |  GLM-5.3Z.ai | cross-developer peerstext |
Seed 1.8ByteDance Seed | vs |  Hy4 previewTencent | cross-developer peerstext |
Seed 1.8ByteDance Seed | vs | Seed 2.1 ProByteDance Seed | family variantsimage, text |
Seed 1.8ByteDance Seed | vs |  Mistral Large 3Mistral AI | cross-developer peersimage, text |
Primary Evidence
Sources and Freshness
Questions
Seed 1.8 vs VibeVoice ASR Streaming 1.5B FAQs
Is Seed 1.8 or VibeVoice ASR Streaming 1.5B better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Seed 1.8 and VibeVoice ASR Streaming 1.5B, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Seed 1.8 or VibeVoice ASR Streaming 1.5B?+
Neither model has a directly sourced input price in this comparison. Neither model has a directly sourced output price in this comparison.
Which has a larger context window, Seed 1.8 or VibeVoice ASR Streaming 1.5B?+
Neither model has a larger sourced context window in this comparison. Seed 1.8 is — and VibeVoice ASR Streaming 1.5B is —.
Which performs better in benchmarks, Seed 1.8 or VibeVoice ASR Streaming 1.5B?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Seed 1.8 or VibeVoice ASR Streaming 1.5B be self-hosted?+
VibeVoice ASR Streaming 1.5B is the only model in this pair currently marked as self-hostable. Seed 1.8 is not marked open weight; VibeVoice ASR Streaming 1.5B is open weight.
Can Seed 1.8 and VibeVoice ASR Streaming 1.5B understand images?+
Seed 1.8 is documented with image input; VibeVoice ASR Streaming 1.5B is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Seed 1.8 or VibeVoice ASR Streaming 1.5B?+
Neither has a larger sourced maximum output. Seed 1.8 is — and VibeVoice ASR Streaming 1.5B is —.
Do Seed 1.8 and VibeVoice ASR Streaming 1.5B support reasoning and tool use?+
Seed 1.8: reasoning, tool calling, and image input. VibeVoice ASR Streaming 1.5B: none of these features are definitively sourced. Feature support does not establish relative quality.
Which is available from more inference providers, Seed 1.8 or VibeVoice ASR Streaming 1.5B?+
Seed 1.8 has 0 sourced provider routes; VibeVoice ASR Streaming 1.5B has 0, a tie.
Which offers better value, Seed 1.8 or VibeVoice ASR Streaming 1.5B?+
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.