Gemini 2.5 Flash

gemini-2.5-flash · Google

Gemini 2.5 Flash is Google’s best model in terms of both performance and cost efficiency, offering a comprehensive set of capabilities. It is the first Flash model to support visible reasoning, allowing insight into the thought process behind its responses. With its strong price–performance ratio, the model is well suited for large-scale processing, low-latency, high-throughput tasks that require reasoning, as well as agent-based application scenarios.

API Pricing

Input$0.3 / 1M tokens
Output$2.499 / 1M tokens
Cache read$0.03 / 1M tokens

Specifications

Context1.05M tokens
Modalitiestext, image, video, audio, PDF
CapabilitiesThinking, Tool calling, Web search, URL context, Code interpreter, File search, Structured outputs, Prompt caching

Frequently asked questions

What is Gemini 2.5 Flash?

Gemini 2.5 Flash is Google’s best model in terms of both performance and cost efficiency, offering a comprehensive set of capabilities. It is the first Flash model to support visible reasoning, allowing insight into the thought process behind its responses. With its strong price–performance ratio, the model is well suited for large-scale processing, low-latency, high-throughput tasks that require reasoning, as well as agent-based application scenarios.

What is the context length of Gemini 2.5 Flash?

Gemini 2.5 Flash has a 1,048,576 token context window.

How much does Gemini 2.5 Flash cost?

On AIHubMix, Gemini 2.5 Flash costs $0.3 per million input tokens and $2.499 per million output tokens. Cached input reads are billed at $0.03 per million tokens.

What modalities does Gemini 2.5 Flash support?

Gemini 2.5 Flash accepts text, image, video, audio and PDF input.

What capabilities does Gemini 2.5 Flash support?

Gemini 2.5 Flash supports tool calling, function calling and structured outputs. Per-protocol parameter support is listed in the capability table on this page.

How do I call Gemini 2.5 Flash via API?

Gemini 2.5 Flash is available through the AIHubMix unified API. The API is OpenAI-compatible: point your OpenAI SDK at https://aihubmix.com/v1, use your AIHubMix API key, and set the model name to gemini-2.5-flash — no other code changes needed.

Who created Gemini 2.5 Flash?

Gemini 2.5 Flash is developed by Google. AIHubMix aggregates it alongside models from other providers behind one API and one bill.

When was Gemini 2.5 Flash released?

Gemini 2.5 Flash was released on June 17, 2025 by Google.

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Use Gemini 2.5 Flash via the AIHubMix unified API — one interface for every major LLM.