Which is cheaper, Gpt 5 2 Pro or Gpt 4 1 Nano?
Gpt 4 1 Nano costs $0.1/M input; Gpt 5 2 Pro costs $21/M input. Price spread matters at billion-token scale.
Gateway catalog snapshot.
Gpt 4 1 Nano is cheaper at $0.1/M input vs $21/M input for Gpt 5 2 Pro. Compare context, hosts, and o10 routing bands.
Last updated: 2026-06-27. Full catalog. Reference prices are dated snapshots. Compare total cost and measured task quality before choosing a route.
Gpt 5 2 Pro vs Gpt 4 1 Nano. Price, context, routing
On this page
AnswersSelf-contained
How do Gpt 5 2 Pro and Gpt 4 1 Nano context windows compare?
Gpt 5 2 Pro: 400,000 tokens. Gpt 4 1 Nano: 1,047,576 tokens.
01Deep dive
Comparison summary
Gpt 4 1 Nano is cheaper at $0.1/M input vs $21/M input for Gpt 5 2 Pro. Compare context, hosts, and o10 routing bands.
Gpt 4 1 Nano is cheaper at $0.1/M input vs $21/M input for Gpt 5 2 Pro. Compare context, hosts, and o10 routing bands.
SourceMethodology
o10 gateway + fulfillment catalog snapshot.
FAQFrequently asked questions
Common questions
Which is cheaper, Gpt 5 2 Pro or Gpt 4 1 Nano?
Gpt 4 1 Nano at $0.1/M input vs $21/M for Gpt 5 2 Pro.
Can you run both on the same hosts?
Gpt 5 2 Pro: OpenRouter. Gpt 4 1 Nano: OpenRouter.