Gemini 3 Pro Preview – Shutdown, but parameters and migration information are still critical

Version information card

What is this

Gemini of is a preview version of the Gemini 3 series. It is currently closed and the migration target is . If you are searching for keywords such as Gemini 3 Pro Preview, deprecated, token limits, and migration, the most important thing in this article is to explain the shutdown status, migration direction, and contextual parameters at once. The focus of its text is not on "can it continue to be used?" but on "how to smoothly switch to the old system."

For many teams that have already connected to Gemini, this kind of news is more important than ordinary feature updates, because it directly affects the interface migration, regression verification and model replacement rhythm. In other words, the Gemini 3 Pro Preview manuscript is more like a migration manual: first tell you that it has retired, and then tell you who is the next stop, and what parameters of the old link are worth comparing.

Main functions

• The preview version has been closed, but the verifiable model page information is still retained to facilitate historical comparison.
• The official migration target is given to facilitate Gemini 3 series users to complete the migration without having to continue consuming resources on the old version.
• The model page discloses token limit information, which is suitable for reviewing AI model specifications and evaluating historical call boundaries.
• For the migration team, the most critical thing is not to continue calling, but to sort out the old configuration, context length and risk control threshold.
• If you are organizing the Google Gemini series version evolution, this node can be directly written into the timeline as a deprecated node.

How to use

• Instead of continuing to use it as a production call target, switch to first.
• First perform regression on the output structure and risk control threshold, and then scale up the migration strategy to the production environment.
• Use this Gemini 3 Pro Preview as a migration control sample to check whether the old call chain is compatible.
• If you have cache, prompt word templates or routing rules, do a list first and then switch.

Core Advantages

• Even if the version has been shut down, a clear migration direction can still be given, which is suitable for Google Gemini series migration scenarios.
• The token limit is clear, making it easy to evaluate differences in old system boundaries and AI model specifications.
• It is suitable to be used as a migration control sample, and it is also convenient for SEO to retrieve the key information of Gemini 3 Pro Preview.
• The version status is clear, which can help the team record "deactivated" and "migration target" separately in the document to reduce confusion.

Comparison of similar versions (AI model migration)

Let’s look at the most critical differences first: one is the old preview version that has been shut down, and the other is the new version that is recommended to be migrated to. For model migration drafts, this comparison is more valuable than "better performance".

Application scenarios

• Old system migration, especially for teams still using Gemini 3 Pro Preview.
• Long context output regression, check the impact of the old version of token limit on business.
• Model version switching evaluation, put the deprecated version and the new version in the same comparison table.
• Gemini 3 series AI model migration and parameter verification.
• If you are doing document archiving, this manuscript is also suitable as a template for "closed but still need to retain control information".