This model is deprecated. We still benchmark its performance, but less often: every 18 hours instead of every 6.

Google has launched a newer release, Gemini 2.0 Flash-Lite (Feb '25). We suggest considering it instead.

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Proprietary model

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Released September 2024

Gemini 1.5 Flash (Sep '24): Intelligence, Performance & Price Analysis

Name: Intelligence
Creator: Artificial Analysis
License: https://artificialanalysis.ai/docs/legal/Terms-of-Use.pdf

Try it out

IntelligenceUpdated

N/A

Artificial Analysis Intelligence Index

Performance

N/A

Time per Intelligence Index task (minutes)

Cost

In -Out -

N/A

Cost per Intelligence Index task

Verbosity

N/A

Output tokens from Intelligence Index

Gemini 1.5 Flash (Sep '24) supports text, image, speech, and video input, outputs text, and has a 1M tokens context window with knowledge up to August 2024.

Reasoning	No
Input modality	Supports: text, image, speech, and video
Output modality	Supports: text
Knowledge cutoff	Aug 1, 2024
Context window	1M ~1500 A4 pages of size 12 Arial font

Metrics are compared against models of the same class:

Non-reasoning models → compared only with other non-reasoning models
Reasoning models → compared across both reasoning and non-reasoning
Open weights models → compared only with other open weights models of the same size class:

Tiny: ≤4B parameters
Small: 4B–40B parameters
Medium: 40B–150B parameters
Large: >150B parameters

Proprietary models → compared across proprietary and open weights models of the same price range, using a blended 3:1 input/output price ratio:

<$0.15 per 1M tokens
$0.15–$1 per 1M tokens
>$1 per 1M tokens

Updated

Intelligence

Artificial Analysis Intelligence Index · Higher is better

No publicly available API

Time per Task

Inference time (minutes) per Intelligence Index task · Lower is better

No publicly available API

Cost per Task

Weighted average cost (USD) per Intelligence Index task · Lower is better

No publicly available API

IntelligenceUpdated

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v5.0.1 incorporates 9 evaluations: AA-Briefcase v1.1, AutomationBench-AA, Terminal-Bench 4.0, FrontierCode-AA 2.0, AA-Omniscience v1.1, GDP.pdf, HLE-Diamond, CritPt v2 (Hard Subset), and Terminal-Bench-Science 0.1

Artificial Analysis Intelligence Index v5.0.1 includes: AA-Briefcase v1.1, AutomationBench-AA, Terminal-Bench 4.0, FrontierCode-AA 2.0, AA-Omniscience v1.1, GDP.pdf, HLE-Diamond, CritPt v2 (Hard Subset), Terminal-Bench-Science 0.1. See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.

Artificial Analysis Intelligence Index by Open Weights / Proprietary

Indicates whether the model weights are available. Models are labelled as 'Commercial Use Restricted' if commercial use is limited by conditions, and as 'Non-commercial' if the license prohibits commercial use.

Intelligence Index vs. Cost per Task

Artificial Analysis Intelligence Index · Weighted average cost (USD) per Artificial Analysis Intelligence Index task

Most attractive quadrant

Pareto line

Weighted average cost per Intelligence Index task. Each evaluation’s cost is calculated from input, cache hit, cache write, reasoning, and answer token prices, divided by task count, and weighted by its Intelligence Index weight.

Benchmarks

Evaluations

Intelligence evaluations measured independently by Artificial Analysis · Higher is better

MMMU-Pro

Visual reasoning

While model intelligence generally translates across use cases, specific evaluations may be more relevant for certain use cases.

Cost

Cost per Intelligence Index Task

Weighted average cost (USD) per Intelligence Index task · Segmented by token type · Lower is better

Cost to Run Artificial Analysis Intelligence Index

Cost (USD) to run all evaluations in the Artificial Analysis Intelligence Index

The cost to run the evaluations in the Artificial Analysis Intelligence Index, calculated using the model's input, cache hit, cache write, reasoning, and answer token prices and the number of tokens used across evaluations (excluding repeats).

Pricing: Cache Hit, Input, and Output

Price (USD per M Tokens)

Price per token for cached prompts (previously processed), typically offering a significant discount compared to regular input price, represented as USD per million tokens. The values shown here are the cache hit price; cache write and cache storage are billed separately and vary by provider — see "Cache pricing by provider" for detail.

Context Window

Context window: tokens limit · Higher is better

Larger context windows are relevant to RAG (Retrieval Augmented Generation) LLM workflows which typically involve reasoning and information retrieval of large amounts of data.

Maximum number of combined input & output tokens. Output tokens commonly have a significantly lower limit (varied by model).

Further details

								Weights
Gemini 1.5 Flash (Sep '24)	Google	-	-	1M	-	-	-	Not available	-

Frequently Asked Questions

Common questions about Gemini 1.5 Flash (Sep '24)

Gemini 1.5 Flash (Sep '24) was released on September 24, 2024.

Gemini 1.5 Flash (Sep '24) was created by Google.

No, Gemini 1.5 Flash (Sep '24) is not a reasoning model. It provides direct responses without extended chain-of-thought reasoning.

Gemini 1.5 Flash (Sep '24) supports text, image, speech, and video input.

Gemini 1.5 Flash (Sep '24) supports text output.

Yes, Gemini 1.5 Flash (Sep '24) supports image input and can analyze, describe, and answer questions about images.

Yes, Gemini 1.5 Flash (Sep '24) is multimodal. It can process text, image, speech, and video input and generate text output.

Gemini 1.5 Flash (Sep '24) has a context window of 1M tokens. This determines how much text and conversation history the model can process in a single request.

No, Gemini 1.5 Flash (Sep '24) is proprietary. The model weights are not publicly available.

Gemini 1.5 Flash (Sep '24) is a proprietary model and Google has not disclosed the model size or parameter count.

Gemini 1.5 Flash (Sep '24) has a knowledge cutoff of August 2024. The model's training data includes information up to this date.

Check the providers page for current API availability. View providers

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Gemini 1.5 Flash (Sep '24): Intelligence, Performance & Price Analysis

Model summary

IntelligenceUpdated

Performance

Cost

Verbosity

Technical specifications

302 models in this class

Intelligence

Time per Task

Cost per Task

IntelligenceUpdated

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index by Open Weights / Proprietary

Artificial Analysis Intelligence Index

Open Weights

Intelligence Index vs. Cost per Task

Cost per Intelligence Index Task

Artificial Analysis Intelligence Index

Benchmarks

Evaluations

Intelligence Evaluation Relevance

Artificial Analysis Intelligence Index

Cost

Cost per Intelligence Index Task

Cost per Intelligence Index Task

Cost to Run Artificial Analysis Intelligence Index

Cost to Run Artificial Analysis Intelligence Index

Pricing: Cache Hit, Input, and Output

Cache Hit

Context Window

Context Window

Context Window for RAG

Context Window

Further details

More from Google

Frequently Asked Questions

When was Gemini 1.5 Flash (Sep '24) released?

Who created Gemini 1.5 Flash (Sep '24)?

Is Gemini 1.5 Flash (Sep '24) a reasoning model?

What input modalities does Gemini 1.5 Flash (Sep '24) support?

What output modalities does Gemini 1.5 Flash (Sep '24) support?

Can Gemini 1.5 Flash (Sep '24) process images?

Is Gemini 1.5 Flash (Sep '24) multimodal?

What is the context window of Gemini 1.5 Flash (Sep '24)?

Is Gemini 1.5 Flash (Sep '24) open source?

How many parameters does Gemini 1.5 Flash (Sep '24) have?

What is the knowledge cutoff date for Gemini 1.5 Flash (Sep '24)?

Is Gemini 1.5 Flash (Sep '24) available via API?

Where can I use Gemini 1.5 Flash (Sep '24)?