Summary
opencode-go/muse-spark-1.2-contributor accepts requests but hangs forever — no streamed output, no error, no completion. Other models on the same opencode-go subscription respond instantly, so auth and subscription are healthy. Looks like a server-side serving problem for this specific model.
Reproduction
$ opencode run -m opencode-go/muse-spark-1.2-contributor "hi"
# prints build banner "> build · muse-spark-1.2-contributor"> build · muse-spark-1.2-contributor" then hangs
# ...no output after 150s and again 120s (two separate attempts)
# process must be killed manually
Evidence this is model-specific, not client/auth
| Test |
Result |
opencode run -m opencode-go/muse-spark-1.2-contributor "hi" |
❌ hangs >150s, zero bytes, no error |
opencode run -m opencode-go/deepseek-v4-flash "hi" |
✅ responds in ~5s |
opencode auth list |
✅ Zen + Go credentials present |
opencode models |
✅ model still listed in catalog |
Same model via another provider (meta/muse-spark-1.2-contributor on commandcode.ai) |
✅ responds normally |
Environment
- opencode version: 1.18.13
- OS: macOS (Apple Silicon, arm64)
- Subscription: OpenCode Go (paid)
- Date observed: 2026-08-25
Expected
A normal streamed response or a clean error (429/5xx/model unavailable) so clients can fall back.
Actual
Silent indefinite hang after the build banner — upstream request never completes and never errors out.
Summary
opencode-go/muse-spark-1.2-contributoraccepts requests but hangs forever — no streamed output, no error, no completion. Other models on the sameopencode-gosubscription respond instantly, so auth and subscription are healthy. Looks like a server-side serving problem for this specific model.Reproduction
Evidence this is model-specific, not client/auth
opencode run -m opencode-go/muse-spark-1.2-contributor "hi"opencode run -m opencode-go/deepseek-v4-flash "hi"opencode auth listopencode modelsmeta/muse-spark-1.2-contributoron commandcode.ai)Environment
Expected
A normal streamed response or a clean error (429/5xx/model unavailable) so clients can fall back.
Actual
Silent indefinite hang after the build banner — upstream request never completes and never errors out.