fix(providers): hide memory UI for deep research models

Author: waleedlatif1

apps/sim/blocks/blocks/agent.ts

@@ -442,6 +442,11 @@ Return ONLY the JSON array.`,
         { label: 'Sliding window (tokens)', id: 'sliding_window_tokens' },
       ],
       defaultValue: 'none',
+      condition: {
+        field: 'model',
+        value: MODELS_WITH_DEEP_RESEARCH,
+        not: true,
+      },
     },
     {
       id: 'conversationId',

apps/sim/providers/gemini/core.ts

@@ -396,6 +396,10 @@ function sleep(ms: number): Promise<void> {
 /**
  * Collapses a ProviderRequest into a single input string and optional system instruction
  * for the Interactions API, which takes a flat input rather than a messages array.
+ *
+ * Deep research is single-turn only — it takes one research query and returns a report.
+ * Memory/conversation history is hidden in the UI for deep research models, so only
+ * the last user message is used as input. System messages are passed via system_instruction.
  */
 function collapseMessagesToInput(request: ProviderRequest): {
   input: string