Can you investigate into what is causing this error here?
DEBUG 2026-01-21T17:13:37 +1ms service=network url=https://api.z.ai/api/coding/paas/v4/chat/completions method=POST net
work request
INFO 2026-01-21T17:13:37 +0ms service=bus type=session.updated publishing
INFO 2026-01-21T17:13:37 +0ms service=bus type=session.diff publishing
INFO 2026-01-21T17:13:37 +6ms service=session.processor process
INFO 2026-01-21T17:13:37 +0ms service=llm providerID=cloudflare-ai-gateway modelID=anthropic/claude-3.5-haiku sessionI
D=ses_41e73e73fffeLKAcPnMU1XvWSq small=false agent=build stream
INFO 2026-01-21T17:13:37 +0ms service=provider status=started providerID=cloudflare-ai-gateway getSDK
INFO 2026-01-21T17:13:37 +0ms service=provider providerID=cloudflare-ai-gateway pkg=@ai-sdk/openai-compatible using bu
ndled provider
INFO 2026-01-21T17:13:37 +0ms service=provider status=completed duration=0 providerID=cloudflare-ai-gateway getSDK
ERROR 2026-01-21T17:13:37 +1ms service=session.processor error=sdk.chat is not a function. (In 'sdk.chat(modelID)', 'sdk.chat' is undefined) stack="TypeError: sdk.chat is not a function. (In 'sdk.chat(modelID)', 'sdk.chat' is undefined)\n at getModel (/home/jm/data/code/opencode/packages/opencode/src/provider/provider.ts:374:22)\n at getModel (/home/jm/data/code/opencode/packages/opencode/src/provider/provider.ts:373:34)\n at getLanguage (/home/jm/data/code/opencode/packages/opencode/src/provider/provider.ts:949:38)\n at processTicksAndRejections (native:7:39)" process