Chat

Gemini 2.5 Flash Lite FastDeprecated

Previous-generation lightweight model for cost-efficient processing.

Deprecated by the provider. No shutdown date announced by the provider. Source

gemini-2.5-flash-lite-fast

Best for: Fast, low-cost replies and high-volume everyday tasks

Catalog status

Enabled

Research checked

2026-10-06

Benchmark results

No recorded results

Results are source-attributed, not TokenRex measurements. Different tests and thinking variants are not interchangeable.

Published benchmark coverage

Reviewed sources do not include results for this exact version. Provider specifications and API capabilities remain listed separately.

Model specifications

Input token limit

1.05M

Published provider limit

Maximum output

65.54K

Published provider limit

Knowledge cutoff

January 2025

Upstream model

Input and output modalities

Provider-reported formats; API compatibility is detailed below.

Input

Text

Image

Audio

Video

Output

Text

Exact model ID: gemini-2.5-flash-lite-fast
Model type: Chat
Input token limit: 1,048,576 tokens
Maximum output: 65,536 tokens
Knowledge cutoff: January 2025

Input token limits describe provider input capacity. Published provider limits are not independently tested TokenRex request limits.

Versions and thinking levels

Choose from 2 enabled versions. The exact ID determines the version and its price; benchmark scores do not carry over between variants.

Gemini 2.5 Flash Lite$0.10 in / $0.40 out per 1M tokens

Gemini 2.5 Flash Lite FastSelected$0.18 in / $0.72 out per 1M tokens

Features and tool support

TokenRex’s exposed interface, not every feature advertised by the provider. “Available” describes the implemented interface, not a successful test of every input or tool.

Reasoning configuration

No independent reasoning-mode guarantee is recorded for this exact model.

See enabled versions and provider sources for supported controls.

Coding and agent workflows

Text/code generation and customer-managed tool loops.

Coding benchmark results do not establish a hosted terminal, sandbox, autonomous browser or guaranteed task success.

Streaming answers

Available

Incremental text through TokenRex’s chat endpoint; Claude also has native Messages access.

Customer-defined function tools

Limited

Only customer-defined function tools are forwarded. Model/protocol compatibility applies; your application authorizes and executes every tool.

Forced or named tool selection

Limited

The chat route accepts auto, none and required. A named-tool choice is not forwarded; exact model compatibility is not independently tested.

Images and PDFs

Available

Images and PDFs can be sent in chat messages to every chat model. File size and model limits apply.

Built-in web search

Available

Turn on per request with web_search_options on /v1/chat/completions. $14 per 1K searches plus normal tokens; search results add input tokens. Gemini does not report its search count, so each request with search turned on is billed as one search. Tested live through TokenRex (2026-10).

Hosted web page fetch

Not exposed

No standalone provider web-fetch tool is exposed; built-in search may read pages as part of a search where the provider does so.

Hosted code execution / computer use

Not exposed

No built-in execution environment or computer-control tool is provided. Code generation is not code execution.

Hosted file search / persistent assistants

Not exposed

No hosted file-search index, Assistants endpoint or persistent provider agent is exposed.

Prompt caching

Available

Gateway-reported cache reads and writes are included in billing. See this model’s cached input and cache-write rates; a cache hit is not guaranteed. Output is billed at the standard output rate.

Batch / fine-tuning

Not exposed

No public batch or fine-tuning endpoint is offered here.

Prompt caching

Cache Read:: $0.0180; /1M Tokens
Cache Write:: No extra fee
Web Search:: $14.00; /1K Searches

Eligible repeated prompt prefixes can use the cached-input rate when the gateway reports a cache hit. Cache hits are not guaranteed.

Caching guide and usage fields

TokenRex pricing

Input / 1M tokens

$0.18

Output / 1M tokens

$0.72

Cached input / 1M

$0.018

Cache write / 1M

No extra fee

Test in Playground Get API key

Usage-based billing. Repeated prompt prefixes are cached automatically and billed at the cached input rate.

Billing calculator

Total input tokensprompt_tokens, including cached tokensCached input tokenscached_tokens reported in usageOutput tokensIncludes thinking tokensNumber of requestsSame usage per request

Per request: $0.00792
Total: $0.00792
Without cache: $0.0209

Cached tokens are billed at the cached-input rate; output is always billed at the standard rate. This is an estimate; your actual charge follows the usage the API reports.

API access

https://tokenrex.ai/api/public

POST /v1/chat/completions

Requests require a TokenRex API key and sufficient wallet balance.

Integration documentation

Streaming and customer-defined function tools are routed through the chat API; compatibility varies by model. Image/PDF input is accepted by the bridge, but model vision support needs provider confirmation. Hosted search and computer-use tools are not enabled; public Responses, Assistants, Batch and fine-tuning endpoints are not exposed.

Explore similar models

Gemini 2.5 Flash Gemini 3 Flash Gemini 3.1 Flash Lite

Sources and verification

Provider specifications describe the upstream model, not a guarantee of every feature through TokenRex. Prices come from the enabled catalog; benchmark results belong to the exact tested model.

Provider model specifications
Vendor-reported
Last checked 2026-10-06
Artificial Analysis – Gemini 2.5 Flash-Lite (Reasoning) exact-model page
Third-party report
Last checked 2026-10-06
Artificial Analysis – Gemini 2.5 Flash-Lite (Non-reasoning) exact-model page
Third-party report
Last checked 2026-10-06
Artificial Analysis – GPT-5 nano vs Gemini 2.5 Flash-Lite (Non-reasoning) comparison
Third-party report
Last checked 2026-10-06

Research notes (1)

Published provider limits; maximum-capacity requests have not been independently exercised through TokenRex. Thinking-level variants use the same provider model; reasoning and answer tokens share the output budget.