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01.AIWeights not listed·16K context·— params

Yi Lightning01-ai/yi-lightning

Yi Lightning is 01.AI's cost-efficient flagship — consistently top-5 on LMArena Chinese leaderboards at a fraction of GPT-4o pricing. Fast inference makes it a strong candidate for chat agents.

Pricing across providers

No current verified API pricing is listed. See the official model documentation for availability and billing.

Capabilities

  • chat
  • reasoning

Languages: en, zh

Technical specs

Context
16K
Max output
4K
Parameters
—
Release
—
Training cutoff
—
License
—
Official documentation →

Similar models

Compare with

  • Yi Lightning vs DeepSeek V3.1
    Comparison planned — not yet published
  • Yi Lightning vs R1
    Comparison planned — not yet published
  • Yi Lightning vs DeepSeek V3
    Comparison planned — not yet published

Frequently asked

How much does Yi Lightning cost?+
No current verified API pricing is listed. This does not mean the model is free or that a hosted API is currently available. Check the official model documentation below.
Is Yi Lightning open-source?+
Downloadable weights are not listed in this directory for Yi Lightning. See the official documentation and availability notes for API, subscription or planned weight-release details.
What's the maximum context window for Yi Lightning?+
The model supports up to 16,384 tokens of context (input + output). Some hosted versions may impose a smaller limit — check the "Context" column in the pricing matrix for each provider.