Claude vs DeepSeek: pay for polish only where it shows.
Claude is a premium model family known for careful work. DeepSeek reasons well for very little. Used together, the cheap one does the bulk and the premium one finishes.
Run brainstorming, outlines and first passes on DeepSeek. When you're happy with the direction, switch the conversation to Claude Sonnet or Opus for the final write-up. Claude reads everything DeepSeek produced, so it doesn't start from zero.
Questions
Is DeepSeek as good as Claude?
For a lot of reasoning and coding questions DeepSeek is competitive at far lower cost. Claude tends to be preferred for polished writing and image input. Test both on your task.
Can I switch from DeepSeek to Claude mid-chat?
Yes. Portail keeps one history across every model, so the switch is a single click.