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Kimi K3 vs GPT-5 mini

Side-by-side pricing, capabilities, real-world cost across common scenarios, and our editorial pick.

添加模型最多可对比 4 个模型
全部价格按美元 / 百万 token 计

Kimi K3

Moonshot · released 2026-03-15

Quality (AA Index)80
Input price$0.30
Output price$1.20
Context200K
Throughput150 tok/s
P50 latency0.8s
View full pricing
OVERALL WINNER

GPT-5 mini

OpenAI · released 2026-01-15

Quality (AA Index)84
Input price$0.25
Output price$2.00
Context400K
Throughput280 tok/s
P50 latency0.3s
View full pricing
通过 OpenRouter 试用 Kimi K3通过 OpenRouter 试用 GPT-5 mini

链接通过我们的 OpenRouter 推荐链接在新标签页打开。 查看推广披露

规格对比

绿色列 = 该指标获胜方
MetricKimi K3GPT-5 miniVerdict
Input price
/百万 tokens
$0.30$0.25GPT-5 mini −17%
Output price
/百万 tokens
$1.20$2.00Kimi K3 −40%
Context window
max input length
200K400KGPT-5 mini +2.0×
AA Quality
AA Intelligence Index (0–100)
8084GPT-5 mini +4pt
Arena Elo
LMArena human-pref Elo (800–2000)
——Tied
Throughput
tokens per second
150280GPT-5 mini +87%
P50 latency
first token
0.8s0.3sGPT-5 mini −63%
Vision
multimodal
—
Function calling
tool use
Tied
Reasoning mode
chain-of-thought
—

常见场景月度费用

默认用量假设
ScenarioKimi K3GPT-5 mini
customer support
1000K req · 600/180 tok
$396$510
chat with docs
300K req · 4000/300 tok
$468$480
code generation
500K req · 2000/500 tok
$600$750
voice assistant
600K req · 800/200 tok
$288$360
Our pick

For most workloads, choose GPT-5 mini.

  • 17% cheaper input price, which compounds at scale
  • 2.0× the context window — better for long documents and agents
  • 87% faster throughput — matters for streaming UX and voice agents

GPT-5 family inheritance at a fraction of the cost — strong on routine tasks but visibly weaker on multi-step reasoning. Default choice when GPT-5 is overkill.

Choose Kimi K3 instead if: 尚未记录这对模型的具体取舍。两者质量差距可能很小，最终决定因素更多是工作负载契合度、集成成本与团队熟悉度。

阅读完整深度分析

为何选择？通过智能路由同时使用两者

第二阶段 · 带故障转移链的网关

Set GPT-5 mini as primary, Kimi K3 as fallback. One key, one bill, automatic failover when GPT-5 mini errors.

第二阶段预览 · 网关尚未上线该接口目前不存在。网关计划在第二阶段上线——下面只是规划中的接口形态预览，不是可用的 API。上线时会通过 newsletter 通知订阅者。
查看计划中的 API 调用形态
$ curl https://api.aipricly.com/v1/chat/completions \
  -H "Authorization: Bearer $AIPC_KEY" \
  -d '{
    "routing": {
      "primary": "openai/gpt-5-mini",
      "fallback": ["moonshot/kimi-k3"]
    },
    "messages": [{"role": "user", "content": "..."}]
  }'

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