Choosing a model - Investi

The model picker sits in the bottom-left of the chat composer, next to the reasoning-effort picker.

Vela and frontier models

Vela is Investi’s house model. It is available on every plan with unlimited use (rate limits only); on the free Hobby plan, it is the model you use.
Frontier models from Anthropic (Claude), OpenAI (GPT), Google (Gemini), xAI (Grok), and others are available on the Pro plan. On Hobby they appear in the picker with a “Pro” badge; selecting one takes you to Settings → Plans & Billing.

Model	Provider	Plan	Context	Capabilities
Vela	Investi	Hobby & Pro, unlimited	(add)	Agent, Thinking
Claude	Anthropic	Pro	(add)	Agent, Thinking
GPT	OpenAI	Pro	(add)	Agent, Thinking
Gemini	Google	Pro	(add)	Agent, Thinking
Grok	xAI	Pro	(add)	Agent, Thinking

The exact model lineup evolves as providers ship new models; open the picker to see what’s currently available.

Managing the picker list

Select Add Models in the picker footer (or go to Settings → Models) to choose which models appear in the picker. Each model has an enable/disable switch; at least one must stay enabled.

Reasoning effort

Next to the model picker, the reasoning-effort picker controls how much the model thinks before answering, from Minimal up to Max, plus a No Thinking option. Higher effort tends to produce more careful analysis at the cost of speed. On the Hobby plan, the lower effort levels are available; higher levels are part of Pro.

For quick lookups, a low effort setting is faster and usually enough. Save higher effort for thesis work, comparisons, and anything you’ll act on.