Compare · ModelsLive · 2 picked · head to head

GPT-5.5 vs Llama 2-13B

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·no signal
QUIET
Llama 2-13B
#128 by perf·no signal
QUIET
Best value
GPT-5.5
4.9 pts/$
$17.50/M
Llama 2-13B
no price
Vendor risk
OpenAI logo
OpenAI
$840.0B·Tier 1
Medium risk
Meta logo
Meta AI
$1.50T·Tier 1
Low risk
Head to head
GPT-5.5Llama 2-13B
GPQA diamond
GPT-5.5 leads by +91.8
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
Llama 2-13B
1.8
Full benchmark table
BenchmarkGPT-5.5Llama 2-13B
GPQA diamond
Graduate-Level Google-Proof QA (Diamond set) · expert-crafted questions in physics, biology, and chemistry that are difficult even for domain PhDs.
93.61.8
Pricing · per 1M tokens · projected $/mo at 10M tokens
ModelInputOutputContextProjected $/mo
OpenAI logoGPT-5.5$5.00$30.00400K tokens (~200 books)$112.50
Meta logoLlama 2-13B