Gemini 2.5 Flash

SyncDev model directory · Profile updated Oct 13, 2026

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Gemini 2.5 Flash from Google: Fast Gemini workhorse for multimodal apps where latency and price matter.

Key specifications

Specification score
87.2
Context window
1.05M
Max output
65.54K
Input / 1M tokens
$0.30
Output / 1M tokens
$2.50
License
Proprietary

The specification score summarizes recorded features and limits. It is not a benchmark result.

Inputs and outputs

Recorded modality support shows what this model can accept and produce. An undocumented modality is shown as unknown rather than assumed to be unsupported.

Accepts

  • Text input
  • Image input
  • Audio input
  • Video input
  • PDF input

Produces

  • Text output

Capabilities

ReasoningFunction callingVisionAudioJSON mode

What is Gemini 2.5 Flash?

What Gemini 2.5 Flash is for

Fast Gemini workhorse for multimodal apps where latency and price matter. The registry places it in the gemini-flash family with a release date of 2025-06-17. This profile describes its documented interface and how to evaluate it for the intended task.

Inputs and request limits

The recorded inputs are text, image, audio, video and pdf, with text output. The registry lists a 1,048,576-token context window and up to 65,536 output tokens. It also declares reasoning, function calling and structured output. These are specifications, not a measured quality or speed ranking. A host can impose its own request limits and support a different subset of features.

Deployment and cost

Gemini 2.5 Flash is recorded as a hosted model without downloadable weights. Confirm the current model ID and access conditions on the chosen API. A registry listing alone does not establish that an account or region has access.

No independently checked token rate is added from a hosting alias. Use the route’s current price and billing unit when comparing cost, including output, reasoning, cache behavior and retries where applicable.

What to test

Test photographs, screenshots and documents with the detail your application needs to read. Include small text, crowded layouts and questions whose answer is absent. Check whether the answer is supported by the image instead of accepting a plausible description.

Evidence and related models

This is a registry-sourced profile. A model-specific publisher document has not yet been confirmed; access and specifications should be checked before an integration decision. SyncDev has not independently benchmarked Gemini 2.5 Flash.

Browse Google models, explore related tasks, or compare two models using the same workload.

How to evaluate Gemini 2.5 Flash

Compare the model on the work you need to complete.

Tasks and inputs

Gemini 2.5 Flash is listed for Audio-text-to-text, Image-text-to-text, Text generation, Video-text-to-text. It accepts text, image, audio, video, pdf and produces text. Use the publisher’s input format and preprocessing for your chosen deployment.

Capacity and cost

Documented limits: 1.05M context and 65.54K maximum output. The listed route charges $0.30 input and $2.50 output per million tokens. Measure a completed task using the prompts, documents and tools your application will use. Include reasoning and retries in the result.

Choosing a deployment

Use the model identifier and account requirements for the selected API route. Confirm its request limits and output format with one complete task before connecting a larger workflow.

Strengths

  • + 1,048,576-token context — the same window as Pro, without Pro's latency
  • + Context caching cuts the cost of re-sending a large document across many calls
  • + Google Search grounding offsets the January 2025 knowledge cutoff for current facts
  • + Batch API and Flex inference make high-volume, non-urgent work substantially cheaper
  • + Reads text, images, audio, video and PDFs natively; structured output and function calling supported

Limitations

  • − Knowledge cutoff is January 2025 — anything later needs Search grounding or your own retrieval
  • − Text output only: no image generation, no audio generation, no Live API
  • − Thinking budget is a real cost lever — leave it high and the price advantage narrows
  • − Output ceiling of 65,536 tokens still forces chunking for book-length generation
  • − Published pricing varies by provider and region; treat any single figure as indicative

Frequently asked questions

Gemini 2.5 Flash from Google: Fast Gemini workhorse for multimodal apps where latency and price matter.

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