OpenCode is SST's open-source coding agent for the terminal. It runs as a fast, keyboard-driven TUI, works across your whole codebase, and was designed from the start to be provider-agnostic rather than tied to a single model. On Opper you get a single key to 700+ models behind it, transparent pass-through pricing, and a choice of EU or US hosting.
OpenCodeoninPaste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.
Claude Haiku 5.5 runs on the routes below. Route only to EU providers when your data has to stay in Europe.
| Provider | Region | Zero data retention | Training | Input | Output | Cache read |
|---|---|---|---|---|---|---|
| EU | No | $0.11 | $0.55 | $0.01$0.14 write | ||
| EU | No | $0.11 | $0.55 | $0.01$0.14 write | ||
| EU | No | $0.11 | $0.55 | $0.01$0.14 write | ||
| US | No | $0.10 | $0.50 | $0.01$0.13 write | ||
| Multi | No | $0.10 | $0.50 | $0.01$0.13 write | ||
| Multi | No | $0.10 | $0.50 | $0.01$0.13 write | ||
| Multi | No | $0.10 | $0.50 | $0.01$0.13 write | ||
| Multi | No | $0.10 | $0.50 | $0.01$0.13 write |
Claude Haiku 5.5 is Anthropic’s fast, low-cost model for high-volume summaries, classification, customer support, and scoped agent tasks.
Step-by-step setup for running OpenCode 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