DeepSeek Harness (dsh) is DeepSeek's open-source agent harness, released under MIT and built so that everything is a plugin, from the model adapter and the tool registry to the agent loop itself. Start it with npx @deepseek-ai/dsh web and it opens a local web UI where the agent reads and edits your workspace, runs commands, and keeps a plan, with a headless profile for one-shot jobs from the terminal. On Opper it runs on any of 700+ models rather than DeepSeek's own alone: add Opper as a custom provider and you get one key, automatic fallbacks, and a choice of region.
DeepSeek HarnessoninPaste this into your coding agent (Claude Code, Cursor, Codex, and more) and it will set up and build with Opper for you.
GLM-5.2 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 |
|---|---|---|---|---|---|
| Berget | EU | Zero data retention | No | $1.62 | $5.10 |
| evroc | EU | Zero data retention | No | $1.45 | $5.80 |
| Inceptron | EU | Enterprise | No | $0.75 | $2.90 |
| Nebius | EU | Enterprise | No | $1.40 | $4.40 |
| Nextbit | EU | Enterprise | No | $1.40 | $4.40 |
| Regolo | EU | Zero data retention | No | $2.32 | $6.03 |
| Sference | EU | Zero data retention | No | $1.20 | $4.20 |
| TensorX | EU | Zero data retention | No | $1.50 | $4.50 |
| DeepInfra | US | Enterprise | No | $0.75 | $2.40 |
| Morph | US | Enterprise | No | $1.10 | $4.10 |
| Novita | US | Enterprise | No | $1.40 | $4.40 |
| Wafer | US | Zero data retention | No | $1.26 | $3.96 |
| Alibaba Cloud | Multi | Enterprise | No | $1.19 | $4.15 |
| BytePlus | Multi | Enterprise | No | $1.40 | $4.40 |
| Fireworks | Multi | Enterprise | No | $1.40 | $4.40 |
GLM-5.2 by Z.ai is a 744B open-weight (MIT) mixture-of-experts coding model with a 1M-token context, IndexShare sparse attention, and selectable thinking-effort levels.
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
An open-source, model-agnostic coding agent for the terminal, wired to Opper's catalogue.
opper launch opencode