Capabilities
7-day heat trend
−29.3%Pricing breakdown
Typical 3:1 output-to-input mix, per 1M tokens
Estimated monthly cost by workload
Market position
- Cheaper than 43% of tracked models
- Faster than 53% of tracked models
- Efficiency rank: #333 of 1105
Best suited for
General-purpose text generation, chat, summarization and content workloads where broad capability and low cost matter most.
About 4.0Ultra
iFlytek Spark 4.0 Ultra reference row for general enterprise chat metadata.
4.0Ultra is a Text model from iFlytek Spark (CN). HotON.ai tracks it at $0.00 per 1M input tokens and $0.00 per 1M output tokens, with a 128K-token context window, ~149 tokens/sec throughput and 96.3% availability. Its composite efficiency score is 89/100 at an estimated $0.000 per successful task.
Compare 4.0Ultra
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Frequently asked questions
How much does 4.0Ultra cost per 1M tokens?+
4.0Ultra is tracked at $0.00 per 1M input tokens and $0.00 per 1M output tokens. A typical 3:1 output-to-input workload blends to roughly $0.00 per 1M tokens. Figures are illustrative demo data.
What is 4.0Ultra best for?+
General-purpose text generation, chat, summarization and content workloads where broad capability and low cost matter most.
How fast is 4.0Ultra?+
4.0Ultra delivers about 149 tokens/sec with 96.3% tracked availability, suitable for latency-sensitive, real-time applications.
Is 4.0Ultra cheaper than other AI models?+
Within the HotON.ai tracked set, 4.0Ultra is cheaper than 43% of models on input price and ranks #333 of 1105 by overall efficiency.
Related models
Pricing is real (via the TestKey catalog, updated daily). Quality (Arena Elo) is real where the model is ranked on LMArena. Speed, availability and efficiency are modeled estimates.