At Google I/O in May, Google Cloud told enterprise customers that Gemini Spark, a 24/7 AI agent for Gemini Enterprise, was “rolling out to customers soon.” Google’s release notes for Gemini Enterprise, including its Business edition, still have no Spark entry as of October 16. The control layer for agents reached general availability in June, while the Workspace features announced at I/O began reaching business customers in September and October.
Where the Main I/O Enterprise Items Stand
I/O was not where Google launched its enterprise agent platform. That came on April 22 at Cloud Next, when Google introduced the Gemini Enterprise Agent Platform. Google called it a new developer platform and an evolution of Vertex AI that brings together models, development and tuning services. Model customization followed: supervised and reinforcement learning fine-tuning for Gemini 3.5 Flash both entered public preview in June. The Gemini Enterprise app, where employees find and run agents, is built on that platform.
Google Cloud CEO Thomas Kurian’s I/O post added a second wave. The table shows where seven of its items stood on October 16, based on Google’s release notes and announcement posts.
| Item | What Google said in May | Status on October 16 |
| Gemini 3.5 Flash | “rolling out today” in the Gemini Enterprise app and Agent Platform | Generally available since May 19. Four newer Gemini models have followed. |
| Managed Agents API | Released in preview | Still in preview. The Agent Platform release notes show no general availability entry through October 14. |
| Antigravity in Gemini Enterprise | “in the coming months” | Generally available August 18 as AI developer tools, for Standard, Plus and pay-as-you-go editions with an invoiced billing account. |
| CodeMender | “more to share about expanded availability soon” | Public preview for select customers since July 21. |
| Google Pics | Business preview “this summer” | Generally available from September 1 for Business and Enterprise Standard and Plus, starting with Rapid Release domains. |
| Voice in Gmail, Docs and Keep | Business preview “this summer” | Gmail Live began rolling out to paid Workspace plans October 15. No business rollout post for Docs Live or Keep Live. |
| Gemini Spark | “rolling out to customers soon” | No entry in the Gemini Enterprise or Business edition release notes. Google announced a U.S. beta for consumer Google AI Ultra subscribers in May and released a Mac app for them June 30. |
The Control Layer Shipped First
Agent Gateway and Agent Registry both reached general availability on June 18. Gateway governs connections between users, agents and tools. Model Armor guardrails for it followed on June 24. Controls kept arriving through the summer. The Antigravity developer tools that launched on August 18 let administrators set file-access and terminal-command policies. On September 8, context-aware access for Gemini Enterprise let them restrict use by device security and location.
Kurian’s I/O post offers one reason that order would make sense. Each Spark task runs in a fresh, isolated virtual machine, he wrote, and all traffic routes through Agent Gateway, which enforces data loss prevention policies. The implication is that Spark depends on Agent Gateway, which reached general availability in June. Google has not said it held Spark back for that reason, so the sequencing is an inference.
I/O’s Workspace Features Arrived Late and Narrow
In May, Google said Pics, its AI image tool, would reach business customers in preview “this summer.” It became generally available on September 1 for Business Standard and Plus and Enterprise Standard and Plus, starting with Rapid Release domains. Pics is on by default, and administrators can turn it off by domain, organizational unit or group. Google also says users get higher access to generative AI features in Pics at least through February 28, 2027, and that access may be limited afterward.
Voice took longer. Google launched Docs Live, Keep Live and Gmail voice on September 3 for consumer Google AI subscribers and said all three were “coming soon” for business customers. Gmail Live began rolling out to paid Workspace plans on October 15, with limits: mobile only, and only for U.S. users whose language is set to English (US). It is on by default for organizations with Gemini in Workspace access. Google’s Workspace Updates blog shows no business rollout for Docs Live or Keep Live through October 16.
Voice and Spark both reached consumer subscribers first. Google’s “this summer” turned into September 1 for Pics and October 15 for Gmail voice, and “soon” for Spark still has no date in the release notes.
Four Newer Gemini Models Since May
Gemini 3.5 Flash became generally available in the Gemini Enterprise app on May 19. The release notes have since added Gemini 3.6 Flash on July 21, 3.7 Flash on August 13, 3.8 Flash on September 2 and Gemini 4 Argon on October 13. Google turned 3.8 Flash on by default in the app on September 23. On July 21 it also announced that 3.5 Flash would leave the app’s global region on August 4. It postponed that on August 6 and said a revised removal schedule “will be provided when available.”
The summer upgrades came with administrative work. Gemini 3.6 Flash reached the global region on July 21, and administrators had to switch it on. In the U.S. multi-region, which offers data residency at rest and in processing, it stayed limited to allowlisted projects from July 24 until general availability on August 18. Administrators in unsupported regions could enable it by accepting a warning that traffic would route to the global endpoint, which does not support regional data residency.
Developers had changes to absorb as well. According to the Agent Platform release notes, the Gemini 3.6 Flash API ignores custom temperature, top-K and top-P values, returns an error for custom penalty settings, and rejects requests that end on a model turn.
Later releases handled residency better. Gemini 3.7 Flash, 3.8 Flash and Gemini 4 Argon each reached the global, U.S. and EU regions at once.
My take is that the model schedule, more than the product roadmap, belongs in the contract conversation. Buyers should ask for a written model-retirement policy, a residency timeline for each new model, and a compatibility commitment for API changes.
Gemini 4 Argon is off by default in the Gemini Enterprise app, and its toggle switches to on from October 27. For Spark, the release notes offer nothing to put on a calendar yet.
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