Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, Kimi Chat 1.5 delivers higher overall intelligence and human-preferred responses (Elo 1,420 vs 1,260), while Kimi Chat 1.5 leads in SWE-bench software engineering benchmarks (51%), while Kimi Chat 1.5 is more budget-friendly at $0.8/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
8 direct benchmark disciplines evaluated across capability, speed, and cost
First million-token Gemini Pro. Baseline for 1.5 vs 2.5 vs 3.x Pro.
Moonshot ultra-long context model supporting up to 2 million tokens per request.
Δ 160 Arena Elo pts
95 tok/s
$0.8 / 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 | Gemini 1.5 Pro | Kimi Chat 1.5 | Advantage Delta |
|---|---|---|---|
| Preference Elo | +160 | ||
| Coding Elo | — | — | |
| LiveBench | +8.8% | ||
| SWE-bench | +13% | ||
| GPQA Diamond | +13.5% | ||
| Time to first token | +30 ms | ||
| Output speed | 70 tok/s | 95 tok/s | +25 tok/s |
| Input price | $1.25/1M | $0.2/1M | +$1.05/1M |
| Output price | $0.8/1M | +$4.2/1M | |
| Context window | — |
Simulate monthly production API costs in USD (US Dollar).
Kimi Chat 1.5 is estimated to save $99.75/month ($1,197/year).
Higher SWE-bench (51%).
Lower output list price ($0.8/1M).
Lower TTFT (210 ms).
Larger window (2M).
Gemini 1.5 Pro is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | Kimi Chat 1.5 | Higher SWE-bench (51%). |
| High-volume chat | Kimi Chat 1.5 | Lower output list price ($0.8/1M). |
| Voice / low-latency UI | Kimi Chat 1.5 | Lower TTFT (210 ms). |
| Long-document RAG | Gemini 1.5 Pro | Larger window (2M). |
| Screenshots / vision | Gemini 1.5 Pro | Gemini 1.5 Pro is the side marked multimodal in the catalog. |
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Verified Head-to-Head Telemetry
