Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, Doubao Pro 1.5 delivers higher overall intelligence and human-preferred responses (Elo 1,470 vs 1,370), while Doubao Pro 1.5 leads in SWE-bench software engineering benchmarks (62.1%), while Doubao Pro 1.5 is more budget-friendly at $0.28/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
9 direct benchmark disciplines evaluated across capability, speed, and cost
ByteDance flagship enterprise model with ultra-low token cost and 128k context.
Meta flagship open-weight 405B dense foundation model with 128k context window.
Δ 100 Arena Elo pts
105 tok/s
$0.28 / 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 Pro 1.5 | Llama 3.1 405B | Advantage Delta |
|---|---|---|---|
| Preference Elo | +100 | ||
| Coding Elo | +80 | ||
| LiveBench | +2.8% | ||
| SWE-bench | +3.7% | ||
| GPQA Diamond | +2.3% | ||
| Time to first token | +170 ms | ||
| Output speed | 105 tok/s | 42 tok/s | +63 tok/s |
| Input price | $0.11/1M | $1.25/1M | +$1.14/1M |
| Output price | $0.28/1M | $3.5/1M | +$3.22/1M |
| Context window | — |
Simulate monthly production API costs in USD (US Dollar).
Doubao Pro 1.5 is estimated to save $88.20/month ($1,058/year).
Higher SWE-bench (62.1%).
Lower output list price ($0.28/1M).
Lower TTFT (190 ms).
Larger window (128k).
Doubao Pro 1.5 is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Doubao Pro 1.5 | Higher SWE-bench (62.1%). |
| High-volume chat | Doubao Pro 1.5 | Lower output list price ($0.28/1M). |
| Voice / low-latency UI | Doubao Pro 1.5 | Lower TTFT (190 ms). |
| Long-document RAG | Doubao Pro 1.5 | Larger window (128k). |
| Screenshots / vision | Doubao Pro 1.5 | Doubao Pro 1.5 is the side marked multimodal in the catalog. |
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Verified Head-to-Head Telemetry
