GPT-5.5 vs Llama 4 Maverick

Pick two tools from the same category to compare side-by-side.

	GPT-5.5 OpenAI's flagship frontier model, positioned as a new class of intelligence for coding and professional work.	Llama 4 Maverick Meta's open-weights frontier model; self-hostable on any infra.
Category	model	model
Vendor type	commercial	open source
Pricing	usage	free
Strengths	+ OpenAI's recommended model for complex reasoning and coding + 1M-token context window with up to 128K output tokens + Generally available via the OpenAI API with listed pricing of $5 input / $30 output per million tokens	+ Open weights — fully self-hostable + No per-token API costs once deployed + Active research community
Tradeoffs	− Most expensive tier in OpenAI's lineup; GPT-5.4 is positioned as the more affordable option for similar work − API-only commercial model; no open weights	− Inference infra is the team's problem − Tool-use reliability slightly trails frontier closed models
Used in stacks	0	0