chore: update default MEM0_GRAPH_LLM_MODEL from gpt-4o-mini to gpt-4.1-mini

gpt-4.1-mini is confirmed available and is the newer model in the same
tier. Updated across all compose files and .env.example. Also set an
explicit default value in .env.example (was previously blank).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Author: 2 people

.env.example

@@ -32,9 +32,9 @@ QDRANT_PORT=6333
 # Graph memory (Neo4j) — optional.
 # Set NEO4J_URL + NEO4J_PASSWORD to enable. Leave blank to disable.
 # NEO4J_AUTH must match NEO4J_PASSWORD (format: neo4j/<password>).
-# MEM0_GRAPH_LLM_MODEL: recommended gpt-4o-mini (hosted) or Qwen2.5-14B-Instruct (local).
+# MEM0_GRAPH_LLM_MODEL: recommended gpt-4.1-mini (hosted) or Qwen2.5-14B-Instruct (local).
 NEO4J_AUTH=neo4j/changeme
 NEO4J_URL=bolt://neo4j:7687
 NEO4J_USERNAME=neo4j
 NEO4J_PASSWORD=changeme
-MEM0_GRAPH_LLM_MODEL=
+MEM0_GRAPH_LLM_MODEL=gpt-4.1-mini

compose.graph.yml

@@ -45,7 +45,7 @@ services:
       NEO4J_URL: ${NEO4J_URL:-}
       NEO4J_USERNAME: ${NEO4J_USERNAME:-neo4j}
       NEO4J_PASSWORD: ${NEO4J_PASSWORD:-}
-      MEM0_GRAPH_LLM_MODEL: ${MEM0_GRAPH_LLM_MODEL:-gpt-4o-mini}
+      MEM0_GRAPH_LLM_MODEL: ${MEM0_GRAPH_LLM_MODEL:-gpt-4.1-mini}
     volumes:
       - foxmemory_analytics_data:/data
     depends_on:

compose.one.yml

@@ -44,7 +44,7 @@ services:
       - NEO4J_URL=${NEO4J_URL:-}
       - NEO4J_USERNAME=${NEO4J_USERNAME:-neo4j}
       - NEO4J_PASSWORD=${NEO4J_PASSWORD:-}
-      - MEM0_GRAPH_LLM_MODEL=${MEM0_GRAPH_LLM_MODEL:-gpt-4o-mini}
+      - MEM0_GRAPH_LLM_MODEL=${MEM0_GRAPH_LLM_MODEL:-gpt-4.1-mini}
     volumes:
       - foxmemory_store_data:/qdrant/storage
     depends_on:

compose.split.yml

@@ -42,7 +42,7 @@ services:
       - NEO4J_URL=${NEO4J_URL:-}
       - NEO4J_USERNAME=${NEO4J_USERNAME:-neo4j}
       - NEO4J_PASSWORD=${NEO4J_PASSWORD:-}
-      - MEM0_GRAPH_LLM_MODEL=${MEM0_GRAPH_LLM_MODEL:-gpt-4o-mini}
+      - MEM0_GRAPH_LLM_MODEL=${MEM0_GRAPH_LLM_MODEL:-gpt-4.1-mini}
     volumes:
       - foxmemory_store_data:/qdrant/storage
     depends_on: