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 benchmarks evaluated across capability, speed, and cost
Moonshot ultra-long context model supporting up to 2 million tokens per request.
Auto-discovered from OpenRouter (moonshotai/kimi-k2-thinking). Preview until a second source matches.
Currently comparing Kimi Chat 1.5 vs MoonshotAI: Kimi K2 Thinking. 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 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 | MoonshotAI: Kimi K2 Thinking | 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 | $0.6/1M | +$0.4/1M |
| Output price | $0.8/1M | $2.5/1M | +$1.7/1M |
| Context window | +1.7M |
Simulate monthly production API costs in USD (US Dollar).
Kimi Chat 1.5 is estimated to save $39.50/month ($474/year).
Need SWE-bench on both sides.
Lower output list price ($0.8/1M).
Need TTFT on both sides.
Larger window (2M).
MoonshotAI: Kimi K2 Thinking 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 | MoonshotAI: Kimi K2 Thinking | MoonshotAI: Kimi K2 Thinking is the side marked multimodal in the catalog. |
No comments posted on this matchup yet. Be the first to share an evaluation note!
Dynamic OpenGraph banner generated at /compare/kimi-1-5-long-vs-kimi-k2-thinking/opengraph-image
Verified Head-to-Head Telemetry
