Concordia guide · Model guide
The right model for the way you work.
When to reach for GPT, Claude or Gemini inside Concordia.
Start with the task
GPT-6 Astra is the default for mixed work: reasoning, planning, writing and code. Claude Sonnet 5 is a careful long-form writer and a steady pair programmer. Gemini 3.8 Flash answers quickly and costs the fewest credits, so it suits quick questions and drafts.
Switch whenever you like
Every conversation keeps its own model, and you can change it before any message. Earlier replies stay in the thread, so you can compare answers across families without losing context.
Watch the receipt
Each reply shows the credits it used. If a model feels slower or pricier than the task needs, move the next message to a lighter one.