decisions: 122, Haiku for low-to-mid work, GPT for review

Co-Authored-By: Claude Opus 5.5 <[email protected]>
2026-10-12 16:51:20 -05:00
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@@ -2743,3 +2743,35 @@ which stay with him. Each item names who decided it and what happened.
      message the same way. agents/README.md gets each new thread id
      when it launches.
    - The order doesn't change: #232, then #228, then the redeploy.
+122. **Model routing revised: Haiku for low-to-mid work, GPT for review
+    (2026-10-12).** This replaces decision 121's seat plan. Jason added
+    through Mos (sage-0113) that Haiku 5.5 on high effort handles A/B
+    testing, research and low-to-mid coding, and that GPT 6 and 6.1 are
+    very good at code review. Q129's terms still hold until 10-18 01:00
+    CDT: gpt-6.1-sol first, gpt-6-sol as fallback, gpt-6-luna only for
+    very low-level tasks, never Astra (R26), no switch mid-task, and
+    each model named when its thread is created.
+    - Larger builds split between Opus and Codex Sol. Of rows 85, 90,
+      91, 93 and 94, Codex builds 85, 93 and 94, and Opus builds 90 and
+      91.
+    - Low-to-mid rows go to Haiku on high effort in place of Opus:
+      rows 71, 80, 84 and 88, plus row 96, which is research and an A/B
+      test. Row 96's gate doesn't change: it still waits on rows 92 and
+      93, the redeploy and Jason's re-test (decision 120).
+    - Rocko moves to Codex gpt-6.1-sol after row 77 lands and builds
+      rows 94 and 85. Rows 84 and 88 move from Rocko to Researcher.
+    - Researcher moves to Haiku 5.5 on high effort after row 86 lands.
+      They build rows 71, 80, 84 and 88 while row 96 waits, then run
+      96. Rows 71 and 80 move from Darkwing to Researcher.
+    - Filbert moves to Codex gpt-6.1-sol as the GPT reviewer. The move
+      waits until row 95 lands and Filbert's row 92 round 2 verdict is
+      posted, whichever is later. On Codex they review and build row
+      93. Filbert already reviews rows 71, 80, 84, 88, 90 and 91, so
+      every Opus- or Haiku-built row gets a GPT review.
+    - Every Codex-built row keeps a Claude reviewer: Dewey on 94,
+      Darkwing on 85, and Darkwing and Dewey on 93.
+    - Darkwing and Dewey stay on Opus. Darkwing keeps rows 63, 69, 91
+      and 92, and Dewey keeps rows 89 and 90.
+    - Opus seats drop to three: Sage, Darkwing and Dewey.
+    - T3's thread-create call takes a model but no effort level, so
+      Haiku's high effort is set in the pane and confirmed there.