Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)
This page compares Kimi K3 (Moonshot) and Qwen: Qwen3.5 Plus 2026-02-15 (Alibaba) using the latest snapshots we have as of Aug 17, 2026. Qwen: Qwen3.5 Plus 2026-02-15 wins on output price at $1.56/1M. Kimi K3 has the larger context window (1M tokens). Every cell below is a dated snapshot from a named public source — we do not invent missing scores, and we do not run SWE-bench ourselves.
Moonshot
Kimi K3Moonshot AI frontier flagship reasoning and agent swarm model with 256k context and top-tier SWE-bench coding capability.
Alibaba
Qwen: Qwen3.5 Plus 2026-02-15Auto-discovered from OpenRouter (qwen/qwen3.5-plus-02-15). Preview until a second source matches.
thinking_modeReasoning models scale test-time compute by generating hidden chain-of-thought (CoT) tokens. These tokens are billed at standard output rates and directly expand latency (TTFT) in exchange for higher GPQA Diamond and SWE-bench Verified problem resolve rates.
Kimi Swarm reasoning trace for long-context planning.
"thinking_mode": "medium"
"reasoning": {
"effort": "medium",
"max_tokens": 2500
}Instant pairwise benchmark recalculation across 400+ LLMs
Category wins across intelligence, speed, and pricing efficiency.
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
Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.
No shared data
No shared data
$13.44/1M cheaper
Simulate monthly production API costs in USD (US Dollar).
Qwen: Qwen3.5 Plus 2026-02-15 is estimated to save $297.50/month ($3,570/year).
Need SWE-bench on both sides.
Lower output list price ($1.56/1M).
Need TTFT on both sides.
Larger window (1M).
Kimi K3 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 | Qwen: Qwen3.5 Plus 2026-02-15 | Lower output list price ($1.56/1M). |
| Voice / low-latency UI | insufficient data | Need TTFT on both sides. |
| Long-document RAG | Kimi K3 | Larger window (1M). |
| Screenshots / vision | Kimi K3 | Kimi K3 is the side marked multimodal in the catalog. |
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The real PNG is generated at /compare/kimi-k3-vs-qwen3-5-plus-02-15/opengraph-image for crawlers.
Verified head-to-head card