Gemini 2.5 Pro entered experimental testing in late March (03-25). Four days after debuting for paying subscribers and developers, Google surprisingly made it available for free users. It got a big coding upgrade in May (05-06) just before I/O, and one last update at the start of June (06-05).

With the stable version today, there are “no changes from the 06-05 preview version.”

L-R: Latest, 06-05, 05-06, 03-25 benchmarks

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With this launch, 2.5 Pro will lose the “preview” label in the Gemini app’s model picker. It follows 2.5 Flash entering GA in the app at I/O last month. Google notes how Pro is for “Reasoning, math & code” prompts, while Flash is for “Fast all-around help.”

Google tells us today that free Gemini app users will continue to have “limited access” to 2.5 Pro, with AI Pro subscribers getting 100 prompts per day, or “expanded access.” Google AI Ultra offers the “highest access.”

2.5 Flash is also now generally available and stable for developers. It’s the same 05-20 model preview from I/O with updated pricing:

$0.30 / 1M input tokens (*up from $0.15 input)

$2.50 / 1M output tokens (*down from $3.50 output)

We removed the thinking vs. non-thinking price difference

We kept a single price tier regardless of input token size

Additionally, developers can now preview Gemini 2.5 Flash Lite for “high-volume, latency-sensitive tasks like translation and classification” where cost is a priority. Google touts “lower latency than 2.0 Flash-Lite and 2.0 Flash on a broad sample of prompts.”

Thinking is turned off by default, but can be enabled with set budgets. Available native tools include “Grounding with Google Search, Code Execution, and URL Context in addition to function calling.” There’s also

multimodal input and the 1 million-token context length.

2.5 Flash Lite has all-around higher quality than 2.0 Flash-Lite on coding, math, science, reasoning and multimodal benchmarks.