Wires opencode.ai as a /v1/chat provider. One sk-* key reaches 40
models across Anthropic, OpenAI, Google, Moonshot, DeepSeek, Zhipu,
Alibaba, Minimax — billed against either the user's Zen balance
(pay-per-token premium models) or Go subscription (flat-rate
Kimi/GLM/DeepSeek/etc.). The unified /zen/v1 endpoint routes both;
upstream picks the billing tier based on model id.
Notable adapter quirks:
- Strip "opencode/" prefix on outbound (mirrors openrouter/kimi
pattern). Caller can use {provider:"opencode", model:"X"} or
{model:"opencode/X"}.
- Drop temperature for claude-*, gpt-5*, o1/o3/o4 models. Anthropic
and OpenAI's reasoning lineage rejects temperature with 400
"deprecated for this model". OCChatBody now serializes temperature
as Option<f64> with skip_serializing_if so omitting it produces
clean JSON.
- max_tokens.filter(|&n| n > 0) catches Some(0) — defensive after
the same trap bit kimi.rs (empty env -> Number("") -> 0 -> 503).
- 600s default upstream timeout; reasoning models on big audit
prompts legitimately take 3-5 min. Override OPENCODE_TIMEOUT_SECS.
Key handling:
- /etc/lakehouse/opencode.env (0600 root) loaded via systemd
EnvironmentFile. Same pattern as kimi.env.
- OPENCODE_API_KEY env first, file scrape as fallback.
Verified end-to-end:
opencode/claude-opus-4-7 -> "I'm Claude, made by Anthropic."
opencode/kimi-k2.6 -> PONG-K26-GO
opencode/deepseek-v4-pro -> PONG-DS-V4
opencode/glm-5.1 -> PONG-GLM
opencode/minimax-m2.5-free -> PONG-FREE
Pricing reference (per audit @ ~14k in / 6k out):
claude-opus-4-7 ~$0.22 (Zen)
claude-haiku-4-5 ~$0.04 (Zen)
gpt-5.5-pro ~$1.50 (Zen)
gemini-3-flash ~$0.03 (Zen)
kimi-k2.6 / glm / deepseek / qwen / minimax / mimo: covered by Go
subscription ($10/mo, $60/mo cap).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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