Claude 3 Sonnet vs Yi-Lightning
Performance benchmarks + pricing comparison — updated April 2026
Claude 3 Sonnet
AnthropicFirst generation Sonnet. Balanced performance for general tasks.
| Input | $3.00/M |
| Output | $15.00/M |
| Context | 200K tokens |
| Best For | General-purpose coding and reasoning |
| Benchmark | 65/100 |
Yi-Lightning
01.ai01.ai's cost-effective model. Competitive Chinese-English bilingual model at very low prices.
| Input | $0.150/M |
| Output | $0.600/M |
| Context | 16K tokens |
| Best For | Chinese-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.
| Scenario | Claude 3 Sonnet | Yi-Lightning | Savings |
|---|---|---|---|
| Small Script (1K lines) | $0.55 | $0.02 | Yi-Lightning saves $0.53 (96%) |
| Medium Feature (10K lines) | $4.05 | $0.17 | Yi-Lightning saves $3.88 (96%) |
| Large Project (50K lines) | $20.25 | $0.86 | Yi-Lightning saves $19.39 (96%) |
| Code Review (5K lines) | $0.90 | $0.04 | Yi-Lightning saves $0.86 (95%) |
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
Claude Sonnet 4
AnthropicAnthropic's balanced model for coding and general tasks. Best price-performance ratio in the Claude family.
Claude Opus 4
AnthropicAnthropic's most powerful model. Best for complex reasoning and challenging coding tasks.
Claude 3.5 Sonnet
AnthropicPrevious generation Sonnet. Still excellent for coding tasks at the same price point.
Claude 3.5 Haiku
AnthropicFast, cost-effective model for high-volume tasks. Great for code review and simple queries.
Claude 3 Opus
AnthropicFirst generation Opus. Highest reasoning capability in the Claude 3 family.
Claude 3 Haiku
AnthropicCheapest Claude model. Fast responses for simple tasks and basic coding.