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 1,420), while Qwen 2.5 Plus leads in SWE-bench software engineering benchmarks (59.2%), while Kimi Chat 1.5 is more budget-friendly at $0.8/1M per 1M output tokens, while Qwen 2.5 Plus provides faster response streaming (110 tok/s). Review the complete breakdown below to determine which model best fits your performance and budget requirements.
10 benchmarks evaluated across capability, speed, and cost
Moonshot ultra-long context model supporting up to 2 million tokens per request.
Alibaba balanced flagship API model with high-throughput general reasoning.
Currently comparing Kimi Chat 1.5 vs Qwen 2.5 Plus. Alternative family tiers available.
Δ 25 Arena Elo pts
110 tok/s
$0.8 / 1M output
Relative percentile scores computed across all active models in the benchmark catalog.
Comparing top standard models across 6 key capability 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 | Kimi Chat 1.5 | Qwen 2.5 Plus | Advantage Delta |
|---|---|---|---|
| Preference Elo | +25 | ||
| Coding Elo | +70 | ||
| LiveBench | +5.5% | ||
| SWE-bench | +8.2% | ||
| GPQA Diamond | +4.3% | ||
| Time to first token | +30 ms | ||
| Output speed | 95 tok/s | 110 tok/s | +15 tok/s |
| Input price | $0.2/1M | $0.25/1M | +$0.05/1M |
| Output price | $0.8/1M | +$0.2/1M | |
| Context window | +1.9M |
Simulate monthly production API costs in USD (US Dollar).
Kimi Chat 1.5 is estimated to save $4.75/month ($57/year).
Higher SWE-bench (59.2%).
Lower output list price ($0.8/1M).
Lower TTFT (180 ms).
Larger window (2M).
Qwen 2.5 Plus is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Qwen 2.5 Plus | Higher SWE-bench (59.2%). |
| High-volume chat | Kimi Chat 1.5 | Lower output list price ($0.8/1M). |
| Voice / low-latency UI | Qwen 2.5 Plus | Lower TTFT (180 ms). |
| Long-document RAG | Kimi Chat 1.5 | Larger window (2M). |
| 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 Telemetry
