Google: Gemini 2.5 Flash Preview 05-20

Preview snapshot of Gemini 2.5 Flash with controllable thinking budgets

Source-linked gemini-flash Closed weights Released 2025-05-20

API record Report

InputT

OutputT

Input priceNot listed

Output priceNot listed

Context1.04858M

Max output65.536K

Providers0

Inference availability

Providers

Provider-specific identifiers, limits, and listed prices per million tokens. Every row links back to the provider's own documentation.

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Specification

Capabilities

Recorded from the source catalog and provider listings.

? Reasoning Unknown

? Tool calling Unknown

? Structured output Unknown

✓ Attachments Yes

✓ Vision input Yes

× Open weights No

Creator: Google
Model family: gemini-flash
Knowledge cutoff: 2025-01
License: Not documented
Release date: 2025-05-20
Model ID: google/gemini-2.5-flash-preview-05-20

Published evaluations

Benchmarks

Every result stays attached to its source, version, metric and harness. Scores from different versions are never merged, and the profile below plots each benchmark against its own population rather than on a shared scale.

Benchmark registry

No published benchmark results

ModelBench does not infer quality from price, context size, or model name. When a source publishes a comparable result, it appears here with its version and link.

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Catalog activity

Change log

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Full change log

No changes recorded

This record has not changed within the retained import history.

Provenance

Sources & verification

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Methodology

Last verified: Oct 24, 2026
Status: Source-linked
Confidence: Medium
Catalog source: Models.dev

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Public API

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API documentation

Endpoint

GET https://modelbench.lol/api/v1/models/google/gemini-2.5-flash-preview-05-20

curl

curl "https://modelbench.lol/api/v1/models/google/gemini-2.5-flash-preview-05-20"

Common questions

Frequently asked questions

Answered directly from the stored record — nothing here is generated beyond the catalog's own fields.

What is Gemini 2.5 Flash Preview 05-20?

Preview snapshot of Gemini 2.5 Flash with controllable thinking budgets. It is published by Google and catalogued here from Models.dev.

What is the context length of Gemini 2.5 Flash Preview 05-20?

Gemini 2.5 Flash Preview 05-20 accepts up to 1.04858M tokens of context and returns up to 65.536K output tokens.

Does Gemini 2.5 Flash Preview 05-20 support tool calling and structured output?

Provider catalogs list support for image input.

Are the weights for Gemini 2.5 Flash Preview 05-20 open?

No. This model is served through hosted APIs only.

When was Gemini 2.5 Flash Preview 05-20 released?

The catalog records a release date of 2025-05-20, last verified Oct 24, 2026.

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