Pairwise benchmark snapshot · Aug 17, 2026
In this head-to-head showdown, MoonshotAI: Kimi K2 0711 delivers higher overall intelligence and human-preferred responses (Elo 1,465 vs 1,445), while MoonshotAI: Kimi K2 0711 leads in SWE-bench software engineering benchmarks (65.8%), while MoonshotAI: Kimi K2 0711 is more budget-friendly at $2.3/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.
Auto-discovered from OpenRouter (moonshotai/kimi-k2). Preview until a second source matches.
OpenAI high-speed, cost-effective reasoning model optimized for STEM, math, and code generation.
Speed, cost, and intelligence tradeoffs across the Moonshot lineup
Δ 20 Arena Elo pts
85 tok/s
$2.3 / 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 | MoonshotAI: Kimi K2 0711 | OpenAI o1-mini | Advantage Delta |
|---|---|---|---|
| Preference Elo | MoonshotAI: Kimi K2 0711 (+20) | ||
| Coding Elo | MoonshotAI: Kimi K2 0711 (+2) | ||
| LiveBench | MoonshotAI: Kimi K2 0711 (+0.8%) | ||
| SWE-bench | MoonshotAI: Kimi K2 0711 (+9.4%) | ||
| GPQA Diamond | OpenAI o1-mini (+0.3%) | ||
| Time to first token | MoonshotAI: Kimi K2 0711 (+40 ms) | ||
| Output speed | 85 tok/s | 85 tok/s | — |
| Input price | $0.57/1M | $1.1/1M | MoonshotAI: Kimi K2 0711 (+$0.53/1M) |
| Output price | $2.3/1M | $4.4/1M | MoonshotAI: Kimi K2 0711 (+$2.1/1M) |
| Context window | MoonshotAI: Kimi K2 0711 (+3k) |
Simulate monthly production API costs in USD (US Dollar).
MoonshotAI: Kimi K2 0711 is estimated to save $50.05/month ($601/year).
Higher SWE-bench (65.8%).
Lower output list price ($2.3/1M).
Lower TTFT (240 ms).
Larger window (131k).
MoonshotAI: Kimi K2 0711 is the side marked multimodal in the catalog.
| Target Workload | Recommended Pick | Evaluation Rationale |
|---|---|---|
| Repo / coding agents | MoonshotAI: Kimi K2 0711 | Higher SWE-bench (65.8%). |
| High-volume chat | MoonshotAI: Kimi K2 0711 | Lower output list price ($2.3/1M). |
| Voice / low-latency UI | MoonshotAI: Kimi K2 0711 | Lower TTFT (240 ms). |
| Long-document RAG | MoonshotAI: Kimi K2 0711 | Larger window (131k). |
| Screenshots / vision | MoonshotAI: Kimi K2 0711 | MoonshotAI: Kimi K2 0711 is the side marked multimodal in the catalog. |
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Verified head-to-head card
