# Gemini 1.5 Pro

Gemini 1.5 Pro is an AI model released by Google on Feb 15 2024.

## Facts

| Field | Value |
| --- | --- |
| Model | Gemini 1.5 Pro |
| Developer | Google |
| Release date | Thursday, Feb 15 2024 |
| Licensing | Proprietary |

## About Gemini 1.5 Pro

Gemini 1.5 Pro, announced February 15, 2024 — just a week after Gemini 1.0 Ultra — made long context the story of 2024. Built on a mixture-of-experts architecture, it shipped with a 1M-token context window (later 2M), an order of magnitude beyond anything else available, and could ingest hour-long videos, entire codebases, or novels in a single prompt.

Its needle-in-a-haystack recall results forced every competitor to race toward longer contexts, and its Flash sibling (May 2024) built Google's reputation for aggressive price-performance. The 1.5 series carried Google's API lineup through 2024 via the -002 refresh before Gemini 2.0 opened the agentic era in early 2025.

## Questions and answers

### When was Gemini 1.5 Pro released?

Gemini 1.5 Pro was released by Google on Thursday, Feb 15 2024.

### Who made Gemini 1.5 Pro?

Gemini 1.5 Pro was built by Google. Builds the Gemini family of models through Google DeepMind. Integrates AI across Google products.

### Is Gemini 1.5 Pro open source?

No. Gemini 1.5 Pro is a proprietary model. The weights are not published — it is available only through the provider's own API, apps, or partner platforms.

### What came before and after Gemini 1.5 Pro?

Google's previous tracked release was Gemini 1.0 Ultra on Feb 8 2024, 7 days earlier. It was followed by Gemma 1 on Feb 21 2024.


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Canonical page: https://aireleasetracker.com/model/google/gemini-1.5-pro
Full dataset: https://aireleasetracker.com/llms-full.txt · JSON: https://aireleasetracker.com/models.json
Source: AI Release Tracker (https://aireleasetracker.com). Most benchmark scores come from lab launch material; gathered results identify the leaderboard that published them.