Zen lists nemotron-3-ultra-free but requests fail as unsupported

[NeKon69]

Description

Tried running:

opencode --model opencode/nemotron-3-ultra-free run hello

Got this:

Model nemotron-3-ultra-free is not supported

This looks like a mismatch between the model catalog used by OpenCode and the live Zen backend. Every other free model replies correctly

Plugins

none

OpenCode version

1.16.0

Steps to reproduce

1. run opencode --model opencode/nemotron-3-ultra-free run hello

Screenshot and/or share link

Operating System

Arch Linux 7.0.10

Terminal

Kitty

[github-actions]

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This issue might be a duplicate of existing issues. Please check:

• Bug: qwen3.7-max returns ModelError "not supported for format oa-compat" via Zen/Go #29688: Similar issue where a model listed in the Zen catalog returns "not supported for format" error when used via Zen/Go

[rafjar1188]

It seems like they've changed it from Ultra to Super Nemotron version. On OpenCode workspace page there is Super listed and curl from v1/models shows only the Super version

However, on Zen documentation there is still Ultra visible

[NeKon69]

That sucks...

[NeKon69]

Just tested it again, seems to be working now!