Compare · ModelsLive · 2 picked · head to head
GPT-5.5 vs Kimi K2.7 Code
Side by side · benchmarks, pricing, and signals you can act on.
Winner summary
GPT-5.5 wins on 1/1 benchmarks
GPT-5.5 wins 1 of 1 shared benchmarks. Leads in knowledge.
Category leads
knowledge·GPT-5.5
Hype vs Reality
Attention vs performance
GPT-5.5
#2 by perf·no signal
Kimi K2.7 Code
#42 by perf·no signal
Best value
Kimi K2.7 Code
7.1x better value than GPT-5.5
GPT-5.5
4.9 pts/$
$17.50/M
Kimi K2.7 Code
34.3 pts/$
$1.84/M
Vendor risk
Who is behind the model
OpenAI
$840.0B·Tier 1
moonshotai
private · undisclosed
Head to head
1 benchmark · 2 models
GPT-5.5Kimi K2.7 Code
GPQA diamond
GPT-5.5 leads by +7.6
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
GPT-5.5
93.6
Kimi K2.7 Code
86.0
Full benchmark table
| Benchmark | GPT-5.5 | Kimi K2.7 Code |
|---|---|---|
GPQA diamond Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs. | 93.6 | 86.0 |
Pricing · per 1M tokens · projected $/mo at 10M tokens
| Model | Input | Output | Context | Projected $/mo |
|---|---|---|---|---|
| $5.00 | $30.00 | 400K tokens (~200 books) | $112.50 | |
| $0.61 | $3.07 | 262K tokens (~131 books) | $12.26 |