Claude vs GPT
Flagship and budget only. Last verified Oct 14, 2026 (same research day for both families). Consumer access and API prices are different products — ChatGPT Plus is not the same as the OpenAI API bill.
Flagship (API default / hardest work)
Claude Opus 5.5
Hard, multi-step work you would pay extra for: long coding sessions, research write-ups, and jobs that run for a while.
Context 1M · API $4 / 1M in / $20 / 1M out
SourceGPT-6 Astra
Paid ChatGPT users and API developers with the hardest work — research, long coding, and multi-step computer use.
Context 1.05M · API $10 / 1M in / $50 / 1M out
SourceBudget (cheap, fast, high volume)
Claude Haiku 5.5
Quick answers, sorting, extraction, and anything you run hundreds of times.
Context 1M · API $0.1 / 1M in / $0.5 / 1M out
SourceGPT-6 Luna
Lots of short, cheap jobs — classification, drafts, and bulk API calls.
Context 1.05M · API $0.1 / 1M in / $0.5 / 1M out
Source