01.AI

Yi-Lightning

Name: Yi-Lightning
Author: 01.AI

Complete specs, pricing, and benchmark data for Yi-Lightning by 01.AI. Last verified 2026-04-20.

JSON ModeFunctionsStreaming

Pricing

Input / 1M tokens

$0.140

Output / 1M tokens

$0.140

Context & Output

Context Window

16K

Max Output

4,096

TTFT

150ms

Speed

100 tok/s

Benchmarks

Arena ELO

1165

Coding ELO

1170

Reasoning ELO

1165

HumanEval

MMLU

MATH

GPQA

Price History (Input $/M tokens)

Strengths

Limitations

Cost EffectiveFast Inference

Your ad here