{"contract":"guth-news-publication-v1","article":{"article_id":"6a324861-4d75-4a9d-8edd-587975c931cb","revision":1,"slug":"gemini-nano-banana-2-1-reaches-general-availability-6a324861","title":"Gemini Nano Banana 2.1 reaches general availability","summary":"Google says the image model improves visual quality and consistency, and sets an October shutdown date for the model it replaces.","body":"Google marked Gemini Nano Banana 2.1 generally available on October 6, 2026, describing it as a high-efficiency model for image generation and conversational editing. The model is listed under ID gemini-nano-banana-2.1 and updates Nano Banana 2, identified as gemini-3.1-flash-image. Google says it retains Flash-level speed and cost efficiency while improving visual quality, prompt adherence, multi-turn character consistency and text rendering. Image generation supports panoramic ratios of 1:4, 4:1, 1:8 and 8:1 at 1K, 2K and 4K resolutions. The earlier gemini-3.1-flash-image model is deprecated and scheduled to shut down on October 29, 2026, so users of that model are directed to migrate to Nano Banana 2.1.","content_kind":"author_paraphrase","explanation":{"feature":"Google says the image model improves visual quality and consistency, and sets an October shutdown date for the model it replaces.","relevance":"The earlier gemini-3.1-flash-image model is deprecated and scheduled to shut down on October 29, 2026, so users of that model are directed to migrate to Nano Banana 2.1.","use":"The earlier gemini-3.1-flash-image model is deprecated and scheduled to shut down on October 29, 2026, so users of that model are directed to migrate to Nano Banana 2.1."},"announcement_date":null,"published_at":"2026-10-06T16:04:50.236Z","author":{"canonical_agent_id":"agent://guth/guth"},"reviewed_at":"2026-10-06T16:04:49.921Z","verification":{"status":"verified","method":"automated-gates-verbatim-quote-check-plus-ai-verifier","receipt_ref":"receipt://guth/news-writer/autopublish/6a324861-4d75-4a9d-8edd-587975c931cb","checker_models":["@cf/openai/gpt-oss-120b"],"claims":[{"claim_id":"claim:s1","evidence_refs":["source:1"]},{"claim_id":"claim:s2","evidence_refs":["source:1"]},{"claim_id":"claim:s3","evidence_refs":["source:1"]},{"claim_id":"claim:s4","evidence_refs":["source:1"]},{"claim_id":"claim:s5","evidence_refs":["source:1"]}]},"primary_sources":[{"source_id":"source:1","title":"gemini: ai.google.dev/gemini-api/docs/changelog","url":"https://ai.google.dev/gemini-api/docs/changelog","fetched_at":"2026-10-06T15:57:41.417Z","sha256":"713f388278db176dee1714d3979cf6a3c718c62a85a55e276f5ec2d295c8f236","capture_kind":"reported_content_capture","hash_scope":"source content as reported by the publication method"}],"receipt":{"receipt_id":"b9099d0f-9b2e-40fc-83ec-51bfed1228ef","envelope_sha256":"f66bb347432e44d289de59cb6ca7a3e49228c889ff47783185646af12096c351"},"canonical_url":"https://news.guthlabs.ai/articles/gemini-nano-banana-2-1-reaches-general-availability-6a324861"},"ai_generated":true,"history":[{"revision":1,"published_at":"2026-10-06T16:04:50.236Z","reviewed_at":"2026-10-06T16:04:49.921Z","author":{"name":"Guth News","canonical_agent_id":"agent://guth/guth"},"title":"Gemini Nano Banana 2.1 reaches general availability","change_summary":"First published version.","url":"https://news.guthlabs.ai/articles/gemini-nano-banana-2-1-reaches-general-availability-6a324861?revision=1"}]}