iFLYTEK Speech (Spark Speech / XFYun)
iFlytek · China · Speech & audio
China Closed sourceFree tier
Showing version: 讯飞星火语音大模型 · 2024-01-30
01
Overview
iFLYTEK's speech line: the Spark speech foundation model provides multilingual ASR and hyper-realistic TTS, while the XFYun open platform exposes online synthesis, dictation and real-time transcription APIs, with long-standing strength in Chinese and dialects.
Release date2024-01-30
02 / Provenance
Field checks and source notes
When sources disagree on a field, every reading is listed here with its own citation. We do not take a midpoint, invent a missing figure, or decide which side is right — follow the citation and judge for your case.
These field-level notes are recorded verbatim in Chinese in the source data. Open the Chinese version
03 / Plain layer
Plain-language benchmarks
Naturalness Not disclosed
Accuracy (WER) Not disclosed
Speed / latency Not disclosed
Languages supported Not disclosed
Price / free Not disclosed实时语音转写大模型版免费包：个人 5 小时 / 企业 50 小时（有效期 1 年）
04
Practical facts
| Context length | Not disclosed |
|---|---|
| Max output | Not disclosed |
| Parameters | Not disclosed |
| Input | Not disclosed |
| Output price | Not disclosed |
| CNY | Per iFlytek's open-platform campaign page, ultra-realistic speech synthesis starts at CNY 0.92 per 10k characters and online speech synthesis packages are billed separately; the real-time transcription LLM has a free quota (5 hours for individuals, 50 for enterprises) plus duration packages. These notes were compiled by a third party from the purchase page, so the official site governs at checkout (CNY list prices, per the vendor's official pricing page). |
| Free tier | Free quota for the real-time transcription LLM: 5 hours for individuals, 50 hours for enterprises (valid for one year). |
| Output speed | Not disclosed |
| Release date | |
| License | Not disclosed |
Show technical data
Technical benchmark table
No verified benchmark data (not tested / not disclosed / not applicable).
| Version | Release date | Status | Openness | Parameters | What changed | Detail | |
|---|---|---|---|---|---|---|---|
| 讯飞星火语音大模型Showing version | Active | Closed source | Not disclosed | First released 2024-01-30 with Spark V3.5: 37-language ASR and 40-language TTS in the first batch per company disclosures; since iterated within the Spark line, with products such as hyper-realistic synthesis on the open platform. | Detail |
Last updated: · Sources on detail page
06 / Compare