{"version":"2.0.25","anchor":"environment-variable-for-session-memory-model-selection","canonical_anchor":"environment-variable-for-session-memory-model-selection","heading":"Environment Variable for Session Memory Model Selection","tier":null,"area":null,"scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.0.25\/e\/environment-variable-for-session-memory-model-selection","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.0.25","markdown":"### Environment Variable for Session Memory Model Selection\n\n**What:** Control which AI model handles session memory updates via environment variable **How to use:**\n\n`# Use Haiku for faster, more cost-effective session memory updates export USE_HAIKU_SESSION_MEMORY=1 claude chat # Default behavior (Sonnet) - no environment variable needed claude chat` **Details:**\n\n- Defaults to Sonnet for highest quality session memory extraction\n- Set `USE_HAIKU_SESSION_MEMORY=1` to use Haiku for faster, cheaper updates\n- Useful for rapid iteration or cost-conscious workflows\n- **Evidence**: `Gu8()` function at line 467294 in v2.0.25 uses conditional model selection vs inline object at line 467224 in v2.0.24"}