Spark
iFlytek · China · Language & multimodal
China Closed sourceFree tier
Showing version: Spark X2 · Version lineage ↓
01
Overview
iFlytek's Spark cognitive LLM series, trained on domestic computing infrastructure, covers language understanding, knowledge QA, reasoning, math, code and multimodal abilities, with strengths in voice interaction and education and healthcare scenarios.
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
Memory Not disclosed
Model size Not disclosed
Price / free Not disclosed讯飞星火 Lite API 永久免费开放 (2024-05-22 官方宣布, 多家媒体报道); 官网所示 Spark-X2.5 价格为限时五折价
04
Practical facts
| Context length | Not disclosed |
|---|---|
| Max output | Not disclosed |
| Parameters | Not disclosed |
| Input | Not disclosed |
| Output price | Not disclosed |
| CNY | Input CNY 1.6 per 1M tokens; output CNY 6 per 1M tokens (CNY list prices, per the vendor's official pricing page). |
| Free tier | The iFlytek Spark Lite API is permanently free (announced 2024-05-22 and widely reported); the Spark-X2.5 price shown on the site is a limited-time 50% discount. |
| Output speed | Not disclosed |
| Release date | Not disclosed |
| 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 | |
|---|---|---|---|---|---|---|---|
| Spark X2Showing version | Active | Closed source | Not disclosed | TBD | Detail | ||
| Spark X1 | Active | Closed source | Not disclosed | TBD | Detail | ||
| Spark 4.0 Turbo | Active | Closed source | Not disclosed | TBD | Detail | ||
| Spark V4.0 | Active | Closed source | Not disclosed | TBD | Detail | ||
| Spark V3.5 | Active | Closed source | Not disclosed | TBD | Detail |
Last updated: · Sources on detail page
06 / Compare