{"type":"post","id":"models-google-antigravity-docs-analysis-11799b","slug":"models-google-antigravity-docs-analysis-11799b","title":"Models | Google Antigravity Docs","description":"**Thesis:** Antigravity’s published plan matrix lists Claude Sonnet 5.5 and Claude Opus 5.5 as reasoning-model choices for Google AI Pro and Ultra.","retrieval_nugget":"**Thesis:** Antigravity’s published plan matrix lists Claude Sonnet 5.5 and Claude Opus 5.5 as reasoning-model choices for Google AI Pro and Ultra.","published_at":"2026-10-03","updated_at":"2026-10-03","record_date":"2026-10-03","date_kind":"published_at","topics":["claude","google"],"source_urls":["https://www.antigravity.google/docs/models/"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:models-google-antigravity-docs-analysis-11799b","status":"published","visuals":[],"editorial_provenance":{"schema_version":"newruntime-editorial-copy-v1","content_status":"source_grounded_final","final_copy_sha256":"sha256:63fae930a2f2d4d7693f44287572449904f5e77c033038306038533622ac9cf3","reviewed_at":"2026-10-03T20:02:18.535Z","source_evidence_count":1,"verified_claim_count":3,"site_analysis_schema_version":"newruntime-site-analysis-v1","site_object_kind":"field_note","observed_fact_count":3,"implication_count":2,"watch_condition_count":1,"related_record_count":0},"analysis":{"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"Antigravity’s published plan matrix lists Claude Sonnet 5.5 and Claude Opus 5.5 as reasoning-model choices for Google AI Pro and Ultra.","observed_facts":[{"text":"The table marks both Claude 5.5 models unavailable for Free and Google AI Plus, available for Google AI Pro and Ultra, and unavailable for Enterprise.","source_urls":["https://www.antigravity.google/docs/models/"]},{"text":"The footnote says Pro availability is limited to non-trial subscriptions.","source_urls":["https://www.antigravity.google/docs/models/"]},{"text":"The page says users can choose the reasoning model from a selector below the conversation prompt box.","source_urls":["https://www.antigravity.google/docs/models/"]}],"mechanism":"Antigravity exposes selectable reasoning models through its conversation model selector, while plan entitlements determine which options are available. The documented distinction between paid tiers and trial subscriptions means a plan label alone may not guarantee access to these Claude models.","why_now":"The official models page now provides a concrete plan-by-plan listing, making the access conditions more specific than an unverified claim about the product.","implications":["For eligible Pro and Ultra users, the documentation indicates a choice between Claude 5.5 reasoning models and other listed models.","Enterprise customers should not assume these entries apply to their plan: the table marks Enterprise unavailable."],"evidence_boundary":"The source is the official Antigravity models page; it supplies no date for when the entries were added and does not verify rollout to individual accounts.","watch_conditions":["Check whether the model selector exposes Claude 5.5 to eligible non-trial Pro and Ultra accounts, and whether Google later changes the plan matrix or clarifies rollout timing."],"related_records":[],"new_branch_reason":"No prior New Runtime record was supplied; this decision starts a distinct record for the official plan-matrix listing and its access restrictions, without asserting a link to any related record."},"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/models-google-antigravity-docs-analysis-11799b/","markdown":"https://newruntime.com/posts/models-google-antigravity-docs-analysis-11799b.md","json":"https://newruntime.com/posts/models-google-antigravity-docs-analysis-11799b.json"},"next_reads":[{"type":"topic","path":"/topics/claude/","url":"https://newruntime.com/topics/claude/","title":"Claude","reason":"Explore the claude topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/claude.md","json_url":"https://newruntime.com/topics/claude.json"},{"type":"topic","path":"/topics/google/","url":"https://newruntime.com/topics/google/","title":"Google","reason":"Explore the google topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/google.md","json_url":"https://newruntime.com/topics/google.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}