diff --git a/CLAUDE.md b/CLAUDE.md
index e762931..8f5e222 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -131,22 +131,26 @@ alone. The loop:
 
 ### Model selection
 
-Sessions are spawned with `aoe`, which can run `claude`, `codex`, `opencode` and
-`pi`. The GPT-5.6 models are `terra` and `sol`, reached through the `codex` tool.
+Sessions are spawned with `aoe`. **Four models, and only these four** — Opus 5
+and Fable 5 through the `claude` tool, Sol and Terra through `codex`.
 
 | Difficulty | Model | Spawn |
 |---|---|---|
-| `difficulty/hard` | Opus 5 | `aoe add <path> --tool claude --model claude-opus-5 -l` |
-| `difficulty/moderate` | Sonnet 5 or `gpt-5.6-sol` | `aoe add <path> --tool codex --extra-args "-m gpt-5.6-sol" -l` |
-| `difficulty/easy` | `gpt-5.6-terra` | `aoe add <path> --tool codex --extra-args "-m gpt-5.6-terra" -l` |
-| `difficulty/trivial` | Haiku 4.5 | `aoe add <path> --tool claude --model claude-haiku-4-5-20251001 -l` |
+| `difficulty/hard` | Opus 5 | `aoe add <path> --tool claude --extra-args "--model claude-opus-5" -l` |
+| `difficulty/moderate` | Sol | `aoe add <path> --tool codex --extra-args "-m gpt-5.6-sol" -l` |
+| `difficulty/easy` | Terra | `aoe add <path> --tool codex --extra-args "-m gpt-5.6-terra" -l` |
+| `difficulty/trivial` | Fable 5 | `aoe add <path> --tool claude --extra-args "--model claude-fable-5" -l` |
 
 Use `-w <branch> -b` to put each session in its own git worktree, which is what
 makes parallel issues safe.
 
-`gpt-5.6-terra` is confirmed — it is the default in `~/.codex/config.toml`.
-`gpt-5.6-sol` is inferred from the sibling naming and should be verified on
-first use.
+Two caveats on the table above, both cheap to fix and worth fixing before a long
+unattended run:
+
+- `gpt-5.6-terra` is confirmed — it is the default in `~/.codex/config.toml`.
+  `gpt-5.6-sol` is inferred from the sibling naming and unverified.
+- The Fable-5-at-trivial and Sol-above-Terra orderings are assumptions. If they
+  are the wrong way round, swap the rows; nothing else depends on the ordering.
 
 Escalate one tier if a session fails CI twice on the same issue. Never
 de-escalate mid-issue.