From 67a77ba3270648af865f7d1654c73810b56cce39 Mon Sep 17 00:00:00 2001
From: claude-code-best <claude-code-best@proton.me>
Date: Tue, 14 Apr 2026 14:32:34 +0800
Subject: [PATCH] =?UTF-8?q?Revert=20"feat:=20compact=20=E6=A8=A1=E5=9E=8B?=
 =?UTF-8?q?=E9=99=8D=E7=BA=A7=E4=B8=BA=20-1=20=E6=A8=A1=E5=BC=8F=EF=BC=88O?=
 =?UTF-8?q?pus=E2=86=92Sonnet,=20Sonnet=E2=86=92Haiku=EF=BC=89"?=
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This reverts commit e458d6391db3932cce903248bb856fdf0fc5730b.
---
 src/services/compact/compact.ts |  5 ++---
 src/utils/model/model.ts        | 22 ----------------------
 2 files changed, 2 insertions(+), 25 deletions(-)

diff --git a/src/services/compact/compact.ts b/src/services/compact/compact.ts
index a0d5903d1..f46194ffb 100644
--- a/src/services/compact/compact.ts
+++ b/src/services/compact/compact.ts
@@ -103,7 +103,6 @@ import {
   getMaxOutputTokensForModel,
   queryModelWithStreaming,
 } from '../api/claude.js'
-import { getCompactModel } from '../../utils/model/model.js'
 import {
   getPromptTooLongTokenGap,
   PROMPT_TOO_LONG_ERROR_MESSAGE,
@@ -1315,13 +1314,13 @@ async function streamCompactSummary({
             const appState = context.getAppState()
             return appState.toolPermissionContext
           },
-          model: getCompactModel(context.options.mainLoopModel),
+          model: context.options.mainLoopModel,
           toolChoice: undefined,
           isNonInteractiveSession: context.options.isNonInteractiveSession,
           hasAppendSystemPrompt: !!context.options.appendSystemPrompt,
           maxOutputTokensOverride: Math.min(
             COMPACT_MAX_OUTPUT_TOKENS,
-            getMaxOutputTokensForModel(getCompactModel(context.options.mainLoopModel)),
+            getMaxOutputTokensForModel(context.options.mainLoopModel),
           ),
           querySource: 'compact',
           agents: context.options.agentDefinitions.activeAgents,
diff --git a/src/utils/model/model.ts b/src/utils/model/model.ts
index 1aa3c79a6..791daeb6b 100644
--- a/src/utils/model/model.ts
+++ b/src/utils/model/model.ts
@@ -47,28 +47,6 @@ export function getSmallFastModel(): ModelName {
   return process.env.ANTHROPIC_SMALL_FAST_MODEL || getDefaultHaikuModel()
 }
 
-/**
- * Get the model to use for compaction, one tier below the current model.
- * Opus → Sonnet, Sonnet → Haiku, Haiku → Haiku (already lowest).
- * Preserves [1m] suffix only if the target family supports it (sonnet/opus).
- */
-export function getCompactModel(model: ModelName): ModelName {
-  const has1m = model.endsWith('[1m]')
-  const baseModel = has1m ? model.slice(0, -4) : model
-  const canonical = getCanonicalName(baseModel)
-
-  // Opus family → Sonnet
-  if (canonical.includes('opus')) {
-    return getDefaultSonnetModel()
-  }
-  // Sonnet family → Haiku
-  if (canonical.includes('sonnet')) {
-    return getDefaultHaikuModel()
-  }
-  // Haiku or unknown → Haiku (lowest tier)
-  return getDefaultHaikuModel()
-}
-
 export function isNonCustomOpusModel(model: ModelName): boolean {
   return (
     model === getModelStrings().opus40 ||