Goose is an open-source AI agent that goes beyond code suggestions: it installs dependencies, runs and tests code, and automates whole engineering workflows from the terminal or its desktop app. Created by Block and now part of the Linux Foundation's Agentic AI Foundation alongside MCP, it is built to be model-agnostic. Add Opper as an OpenAI-compatible provider and it runs on any of 700+ models with one key.
GooseoninPaste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.
Gemini 3.8 Flash runs on the routes below. Route only to EU providers when your data has to stay in Europe. Some routes also sell flex and priority processing: the same model at another price, picked per request with service_tier. How service tiers work.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read | ||
|---|---|---|---|---|---|---|---|---|
| EU | No | $0.82 | $4.13 | $0.08 | Not offered on this route | Not offered on this route | ||
| EU | No | $0.82 | $4.13 | $0.08$0.91 write | Not offered on this route | |||
| US | No | $0.75 | $3.75 | $0.07$0.79 write | ||||
| Multi | No | $0.75 | $3.75 | $0.07 | Not offered on this route | Not offered on this route | ||
| Multi | No | $0.75 | $3.75 | $0.07$0.83 write |
Gemini 3.8 Flash is Google's workhorse multimodal model for software engineering and agentic tasks, pairing 1M context with image, audio, video, and PDF input.
Step-by-step setup for running Goose on each of these models through Opper.
Anthropic's terminal coding agent. Run it on any model on Opper, not just Claude.
opper launch claude
OpenAI's open-source coding CLI. Run it on any model on Opper.
opper launch codex
DeepSeek's open-source coding agent. Add Opper as a custom provider to run it on any model, not just DeepSeek's.
OpenAI-compatible