Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
In this head-to-head showdown, 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.
3 direct benchmark disciplines evaluated across capability, speed, and cost
Moonshot ultra-long context model supporting up to 2 million tokens per request.
Auto-discovered from OpenRouter (perceptron/perceptron-mk1). Preview until a second source matches.
Currently comparing Kimi Chat 1.5 vs Perceptron: Perceptron Mk1. Alternative family tiers available.
Single model data
No latency data
$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 | Kimi Chat 1.5 | Perceptron: Perceptron Mk1 | Advantage Delta |
|---|---|---|---|
| Preference Elo | — | — | |
| Coding Elo | — | — | |
| LiveBench | — | — | |
| SWE-bench | — | — | |
| GPQA Diamond | — | — | |
| Time to first token | — | — | |
| Output speed | 95 tok/s | — | — |
| Input price | $0.2/1M | $0.15/1M | +$0.05/1M |
| Output price | $0.8/1M | $1.5/1M | +$0.7/1M |
| Context window | +2M |
Simulate monthly production API costs in USD (US Dollar).
Kimi Chat 1.5 is estimated to save $8.75/month ($105/year).
Need SWE-bench on both sides.
Lower output list price ($0.8/1M).
Need TTFT on both sides.
Larger window (2M).
Perceptron: Perceptron Mk1 is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | insufficient data | Need SWE-bench on both sides. |
| High-volume chat | Kimi Chat 1.5 | Lower output list price ($0.8/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | Kimi Chat 1.5 | Larger window (2M). |
| Screenshots / vision | Perceptron: Perceptron Mk1 | Perceptron: Perceptron Mk1 is the side marked multimodal in the catalog. |
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Verified Head-to-Head Telemetry
