Compare · ModelsLive · 2 picked · head to head
GPT-5.1-Codex-Mini vs Kimi K2.7 Code
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
Kimi K2.7 Code wins on 7/8 benchmarks
Kimi K2.7 Code wins 7 of 8 shared benchmarks. Leads in coding · reasoning · math.
Category leads
coding·Kimi K2.7 Codereasoning·Kimi K2.7 Codelanguage·GPT-5.1-Codex-Minimath·Kimi K2.7 Codeknowledge·Kimi K2.7 Code
Hype vs Reality
Attention vs performance
GPT-5.1-Codex-Mini
#45 by perf·#4 by attention
Kimi K2.7 Code
#69 by perf·#17 by attention
Best value
GPT-5.1-Codex-Mini
1.8x better value than Kimi K2.7 Code
GPT-5.1-Codex-Mini
53.7 pts/$
$1.13/M
Kimi K2.7 Code
30.5 pts/$
$1.84/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
Moonshot AI
$18.0B·Tier 1
Head to head
8 benchmarks · 2 models
GPT-5.1-Codex-MiniKimi K2.7 Code
LiveBench · Agentic Coding
Kimi K2.7 Code leads by +30.0
GPT-5.1-Codex-Mini
40.0
Kimi K2.7 Code
70.0
LiveBench · Coding
Kimi K2.7 Code leads by +4.0
GPT-5.1-Codex-Mini
69.9
Kimi K2.7 Code
74.0
LiveBench · Data Analysis
Kimi K2.7 Code leads by +13.0
GPT-5.1-Codex-Mini
49.7
Kimi K2.7 Code
62.7
LiveBench · If
GPT-5.1-Codex-Mini leads by +2.7
GPT-5.1-Codex-Mini
59.0
Kimi K2.7 Code
56.3
LiveBench · Language
Kimi K2.7 Code leads by +14.9
GPT-5.1-Codex-Mini
63.0
Kimi K2.7 Code
77.9
LiveBench · Mathematics
Kimi K2.7 Code leads by +3.3
GPT-5.1-Codex-Mini
76.3
Kimi K2.7 Code
79.6
LiveBench · Overall
Kimi K2.7 Code leads by +11.5
GPT-5.1-Codex-Mini
60.4
Kimi K2.7 Code
71.9
LiveBench · Reasoning
Kimi K2.7 Code leads by +18.1
GPT-5.1-Codex-Mini
64.7
Kimi K2.7 Code
82.8
Full benchmark table
| Benchmark | GPT-5.1-Codex-Mini | Kimi K2.7 Code |
|---|---|---|
LiveBench · Agentic Coding | 40.0 | 70.0 |
LiveBench · Coding | 69.9 | 74.0 |
LiveBench · Data Analysis | 49.7 | 62.7 |
LiveBench · If | 59.0 | 56.3 |
LiveBench · Language | 63.0 | 77.9 |
LiveBench · Mathematics | 76.3 | 79.6 |
LiveBench · Overall | 60.4 | 71.9 |
LiveBench · Reasoning | 64.7 | 82.8 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $0.25 | $2.00 | 400K tokens (~200 books) | $6.88 | |
| $0.61 | $3.07 | 262K tokens (~131 books) | $12.26 |