Compare · ModelsLive · 2 picked · head to head

GPT-5.5 vs phi-3-medium 14B

Side by side · benchmarks, pricing, and signals you can act on.

Winner summary

GPT-5.5 wins 1 of 1 shared benchmarks. Leads in knowledge.

Category leads
knowledge·GPT-5.5
Hype vs Reality
GPT-5.5
#2 by perf·#4 by attention
DESERVED
phi-3-medium 14B
#54 by perf·#20 by attention
UNDERRATED
Best value
GPT-5.5
4.9 pts/$
$17.50/M
phi-3-medium 14B
n/a
no price
Vendor risk
OpenAI logo
OpenAI
$840.0B·Tier 1
Medium risk
Microsoft logo
Microsoft
$3.84T·Big Tech
Low risk
Head to head
GPT-5.5phi-3-medium 14B
GPQA diamond
GPT-5.5 leads by +90.1
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
phi-3-medium 14B
3.5
Full benchmark table
BenchmarkGPT-5.5phi-3-medium 14B
GPQA diamond
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
93.63.5
Pricing · per 1M tokens · projected $/mo at 10M tokens
ModelInputOutputContextProjected $/mo
OpenAI logoGPT-5.5$5.00$30.00400K tokens (~200 books)$112.50
Microsoft logophi-3-medium 14B————