Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, Qwen 2.5 Plus delivers higher overall intelligence and human-preferred responses (Elo 1,445 vs 1,358), while DeepSeek R1 leads in SWE-bench software engineering benchmarks (65.2%), while Qwen 2.5 Plus is more budget-friendly at $1/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
Alibaba balanced flagship API model with high-throughput general reasoning.
Simulate accuracy gains vs added response time & token cost
Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.
Δ 87 Arena Elo pts
110 tok/s
$1 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.
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 | DeepSeek R1 | Qwen 2.5 Plus | Advantage Delta |
|---|---|---|---|
| Preference Elo | Qwen 2.5 Plus (+87) | ||
| Coding Elo | — | — | |
| LiveBench | Qwen 2.5 Plus (+4.5%) | ||
| SWE-bench | DeepSeek R1 (+6%) | ||
| GPQA Diamond | DeepSeek R1 (+4%) | ||
| Time to first token | Qwen 2.5 Plus (+240 ms) | ||
| Output speed | 62 tok/s | 110 tok/s | Qwen 2.5 Plus (+48 tok/s) |
| Input price | $0.7/1M | $0.25/1M | Qwen 2.5 Plus (+$0.45/1M) |
| Output price | $2.5/1M | Qwen 2.5 Plus (+$1.5/1M) | |
| Context window | Qwen 2.5 Plus (+64k) |
Simulate monthly production API costs in USD (US Dollar).
Qwen 2.5 Plus is estimated to save $38.25/month ($459/year).
Higher SWE-bench (65.2%).
Lower output list price ($1/1M).
Lower TTFT (180 ms).
Larger window (128k).
Qwen 2.5 Plus is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | DeepSeek R1 | Higher SWE-bench (65.2%). |
| High-volume chat | Qwen 2.5 Plus | Lower output list price ($1/1M). |
| Voice / low-latency UI | Qwen 2.5 Plus | Lower TTFT (180 ms). |
| Long-document RAG | Qwen 2.5 Plus | Larger window (128k). |
| Screenshots / vision | Qwen 2.5 Plus | Qwen 2.5 Plus is the side marked multimodal in the catalog. |
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Verified head-to-head card
