Build with new OpenAI and Anthropic models

By Steven Van · 2026-09-25

Replit Agent adds GPT-6 Sol, GPT-6 Luna Fast, and Claude Opus 5.5, with access varying by plan tier and Workspace policy.

Replit Agent's model selector now includes GPT-6 Sol, GPT-6 Luna Fast, and Claude Opus 5.5 for building and designing. Choosing a model manually is available to Core and Pro builders in Power or Max mode, the Fast variant requires Pro or Enterprise, and overall availability still depends on a Workspace's model policies.

Agent modes popover showing Free, Power, and Max modes with Power selected, a Primary model list including GPT-5.6 Luna Fast and Claude Sonnet models, and an Ef

Power Mode in the Agent modes popover, with the Primary model list and Effort slider.

Agent modes popover showing Free, Power, and Max modes with Max selected, a Primary model list including Claude Fable 5, Claude Opus 5, GPT-5.6 Sol, and Kimi K3

Max Mode's model list, which includes Kimi K3.

The Primary model list with Claude Fable 5 selected and the Effort slider set to Medium, described as balanced reasoning for everyday tasks

The Effort slider below the model list, set to Medium.

Replit

Browser-based IDE for 50+ languages with AI coding assistance, multiplayer editing, and instant deployments — zero setup, integrated hosting.

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