OpenAI o3-mini vs Yi-Lightning

Performance benchmarks + pricing comparison — updated April 2026

OpenAI o3-mini

OpenAI

Affordable reasoning model for coding tasks. Best price-performance for algorithm-heavy work.

Input$1.10/M
Output$4.40/M
Context200K tokens
Best ForAlgorithm design, coding challenges, debugging
Benchmark80/100

Yi-Lightning

01.ai

01.ai's cost-effective model. Competitive Chinese-English bilingual model at very low prices.

Input$0.150/M
Output$0.600/M
Context16K tokens
Best ForChinese-English translation, cost-sensitive applications

Cost Comparison by Scenario

Estimated cost per project with 30% cache hit rate. Actual costs may vary based on usage patterns.

ScenarioOpenAI o3-miniYi-LightningSavings
Small Script (1K lines) $0.17 $0.02 Yi-Lightning saves $0.15 (86%)
Medium Feature (10K lines) $1.27 $0.17 Yi-Lightning saves $1.09 (86%)
Large Project (50K lines) $6.33 $0.86 Yi-Lightning saves $5.46 (86%)
Code Review (5K lines) $0.30 $0.04 Yi-Lightning saves $0.26 (86%)

Verdict

Yi-Lightning wins on both price and performance — $0.150/M input with a benchmark score of N/A/100.

For most developers, this is the clear choice between these two models.

Compare with Other Models