Pairwise benchmark snapshot · Aug 1, 2026
In this head-to-head showdown, Yi-Lightning delivers higher overall intelligence and human-preferred responses (Elo 1,475 vs 1,360), while Yi-Lightning leads in SWE-bench software engineering benchmarks (63.4%), while Doubao Lite 1.5 is more budget-friendly at $0.1/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
10 direct benchmark disciplines evaluated across capability, speed, and cost
ByteDance high-speed lightweight model priced at sub-cent levels.
01.AI ultra-fast reasoning model delivering top LiveBench efficiency.
Currently comparing Doubao Lite 1.5 vs Yi-Lightning. Alternative family tiers available.
Δ 115 Arena Elo pts
180 tok/s
$0.1 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.
Category wins across reasoning intelligence, generation speed, and token cost.
Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy
Generation throughput and time to first token responsiveness
Cost per million tokens and max context window length
| Benchmark | Doubao Lite 1.5 | Yi-Lightning | Advantage Delta |
|---|---|---|---|
| Preference Elo | +115 | ||
| Coding Elo | +160 | ||
| LiveBench | +11% | ||
| SWE-bench | +17.4% | ||
| GPQA Diamond | +13.8% | ||
| Time to first token | +40 ms | ||
| Output speed | 180 tok/s | 130 tok/s | +50 tok/s |
| Input price | $0.04/1M | $0.14/1M | +$0.1/1M |
| Output price | $0.1/1M | $0.14/1M | +$0.04/1M |
| Context window | +16k |
Simulate monthly production API costs in USD (US Dollar).
Doubao Lite 1.5 is estimated to save $4.10/month ($49/year).
Higher SWE-bench (63.4%).
Lower output list price ($0.1/1M).
Lower TTFT (110 ms).
Larger window (33k).
Yi-Lightning is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Yi-Lightning | Higher SWE-bench (63.4%). |
| High-volume chat | Doubao Lite 1.5 | Lower output list price ($0.1/1M). |
| Voice / low-latency UI | Doubao Lite 1.5 | Lower TTFT (110 ms). |
| Long-document RAG | Doubao Lite 1.5 | Larger window (33k). |
| Screenshots / vision | Yi-Lightning | Yi-Lightning is the side marked multimodal in the catalog. |
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