Using OpenCode with AINative: Frontier and Open Models Through One Endpoint

# Using OpenCode with AINative: Frontier and Open Models Through One Endpoint [OpenCode](https://opencode.ai) is a fast, open-source terminal coding agent, and its best feature is that it is **model-agnostic** — point it at any OpenAI-compatible endpoint and go. AINative is a natural backend: one API key gets OpenCode access to Claude, GPT-4o, Kimi K3, GLM-5, DeepSeek V4, Qwen3 Coder, and 20+ more, with usage-based billing and no separate provider accounts. ## Why pair OpenCode with AINative - **One endpoint, every model.** Instead of juggling separate Anthropic, OpenAI, and open-model provider keys, you use a single AINative key and switch models freely. - **Route by cost.** Send routine edits to a cheap open model; escalate hard reasoning to a frontier model. Same endpoint. - **No per-provider signups.** AINative brokers the providers so you do not manage five billing relationships. - **Land-grab models day one.** New flagship open models (Kimi K3, GLM-5, DeepSeek V4) are available through the same API as they land. ## Setup AINative exposes an **OpenAI-compatible** API, so OpenCode configuration is straightforward: ```bash # 1. Get an API key — start a 7-day free trial # https://ainative.studio/signup # 2. Point OpenCode at AINative's OpenAI-compatible endpoint export OPENAI_BASE_URL="https://api.ainative.studio/api/v1" export OPENAI_API_KEY="" # 3. Pick a model in OpenCode's config, e.g. # model: "claude-opus" (frontier) # model: "qwen3-coder" (fast + cheap) # model: "kimi-k3" (flagship open) ``` Now OpenCode runs against whichever model you choose, all billed through one AINative account. ## Choosing models for coding - **Frontier reasoning / tricky refactors:** Claude (Opus/Sonnet), GPT-4o. - **Fast, cheap iteration:** Qwen3 Coder, DeepSeek V4. - **Flagship open models:** Kimi K3, GLM-5 — strong coding performance without frontier pricing. Mix them: keep a cheap default and switch up only when a task is hard. ## OpenCode vs Cody CLI Both are terminal coding agents. **OpenCode** is a lightweight, bring-your-own-backend tool — great if you already like it and just want a better model backend. **[Cody CLI](/cody-cli)** is AINative's own terminal agent with persistent [ZeroDB memory](/agent-memory-api), MCP-native tooling, and everything included in your plan. If you want cross-session memory and MCP out of the box, try Cody; if you love OpenCode, use it with AINative as the backend. Either way, one AINative key powers it. ## Get started [Start a 7-day free trial](/signup) (then $5/mo Hobbyist), grab your API key, and point OpenCode at AINative. See the [model catalog](/models) for everything available, or the [OpenCode vs Claude Code](/opencode-vs-claude-code) comparison.

Using OpenCode with AINative: Frontier and Open Models Through One Endpoint

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