Spark 4.0
iFlytek's flagship LLM release targeting GPT-4 Turbo parity.
About
Spark 4.0 is iFlytek's fourth-generation Spark large model, launched at a Beijing press conference on June 27, 2024. The company claimed it rivals GPT-4 Turbo in language understanding, reasoning, math, and knowledge Q&A, topping eight mainstream international test sets, while trailing in coding and multimodal generation.
The release upgraded seven core base capabilities and shipped alongside Spark-powered apps, enterprise assistants, and improved multilingual speech models. It is a proprietary model served through iFlytek's platform and apps, not open weights.
Specs
Context window
Pricing
Free quota
API access
Weights
Released
Benchmarks
Provider-reported unless a source says otherwise. Benchmarks are marketing-adjacent by nature — treat them as directional.
Use cases
Trust score — 7/10
Scored 7/10 (metrics tier, metrics-v1). Evidence: Verified via vendor site/docs/GitHub and reputable coverage, wave 126; Trending score 72/100 from researcher assessment.