Update

dot_pi/agent/agents/research.md

@@ -1,7 +1,7 @@
 ---
 name: research
 description: External evidence researcher; use for official docs, upstream source, standards, release notes, issues, and version-specific behavior outside the local repo
-model: openai-codex/gpt-5.6-terra
+model: openai-codex/gpt-6-sol
 thinking: high
 extensions: pi-web
 ---