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Google API Changes & Updates

Google offers Gemini models, Vertex AI, and AI Studio. We monitor pricing changes, model updates, API modifications, and service disruptions across their AI/ML platform.

Official changelog →
8 Changes Detected
🚀 Model Release

Gemini 3.1 Flash Live preview added (audio-to-audio low-latency model)

Google added a Gemini 3.1 Flash Live preview entry describing a low-latency audio-to-audio model (gemini-3.1-flash-live-preview) and published associated input/output pricing for text, audio, and image/video usage. The doc includes a short feature description and links to try the model in Google AI Studio.

model_availability

Community reports: Gemini Pro access restricted to paid subscriptions starting Mar 25, 2026 (unconfirmed)

Community threads and third-party posts (GitHub discussion, Reddit, and some news/aggregator pages) report a service update stating that, beginning March 25, 2026, Gemini Pro models will be limited to paid subscriptions and free-tier users will be restricted to Gemini Flash models. These reports surfaced in developer/community forums and a few aggregator articles but no authoritative Google announcement (docs or blog) has been found to confirm the change at the time of this check.

💰 Pricing

Gemini API/AI Studio introduces Prepay and Postpay billing; Prepay credits, expiry, and service suspension rules

Google rolled out new Prepay and Postpay billing plans for Gemini API / AI Studio and documented billing behavior changes (March 23, 2026). Key details: Prepay accounts must purchase credits (min $10), Prepay credits are consumed for Gemini API usage only and expire after 12 months, Prepay credits are non-refundable except when switching to Postpay, and when a Prepay account's credit balance hits $0 all Gemini API services across projects linked to that billing account will stop. The pages also describe billing tiers, billing account caps, and that tier spend caps enforcement will begin April 1, 2026.

policy_terms_change

Pricing pages updated and Terms of Service updated (March 23, 2026)

Google updated pricing/terms pages and noted an update to the Terms of Service (March 23, 2026). The pricing page and related docs now reference the new Prepay/Postpay options, changes to qualification for tiers, and billing-related terms (credit expiry, refund behavior when switching to Postpay, and eligibility notes for welcome credits).

integration_sdk_change

Gemini API changelog: OpenAI-compat support for gemini-3-pro-image-preview and /v1/videos (veo-3.1)

Google updated the Gemini API changelog (Mar 19, 2026) to add OpenAI compatibility support for the gemini-3-pro-image-preview model and to support the /v1/videos endpoint with the veo-3.1-generate-preview model. This is an API/integration change enabling OpenAI-compatible endpoints to access these preview capabilities.

integration_sdk_change

Gemini API: Built-in Tools + Function Calling combination feature released (Mar 18, 2026)

Gemini API release notes include a March 18, 2026 entry that announces a new Built-in Tools and Function Calling Combination feature, enabling use of built-in tools and function calling together in the same request/flow. The changelog entry describes the capability being available for Gemini 3 models and provides developer guidance in the docs.

💰 Pricing

Gemini API changelog: revamped Usage Tiers and Billing Account spend caps announced (Mar 16, 2026)

The official Gemini API release notes were updated on March 16, 2026 to announce revamped Usage Tiers and Billing Account spend caps. The billing docs were also updated with details: tier spend caps are enforced at the billing-account level, preset values are shown (Tier 1: $250; Tier 2: $2,000; Tier 3: $20,000–$100,000+), and the docs state enforcement of tier spend caps will begin April 1, 2026.

model_deprecation

Gemini 3 Pro Preview deprecated and shut down; migrate to Gemini 3.1 Pro Preview

The Gemini 3 Developer Guide states that the Gemini 3 Pro Preview was deprecated and shut down on March 9, 2026. Google advises migrating usage to Gemini 3.1 Pro Preview (and lists alternative 3-series models such as Gemini 3 Flash and Nano Banana variants). The page also notes an update to the Terms of Service on March 23, 2026.