Gemini 1.5 Flash (Sep ’24)

Google · Released Sep 24, 2024
DFO score #440 / 718
11.7 leaderboard score
Speed
– Not reported
Input Price
– Not priced
Output Price
– Not priced
Context
– Not reported

Analysis Summary

Gemini 1.5 Flash, September 2024 version, is a Google model with a supplied intelligence index of 7.1. This is higher than several other early models in this batch, but still indicates limited measured capability against demanding business tasks. The entry does not include specific coding or content benchmarks, nor pricing, context-window, speed, or tool-use details.

It may be considered for a constrained workflow only after testing confirms that its outputs meet the required quality bar. The information available does not support choosing it for autonomous agents, complex analysis, or high-stakes client deliverables, and it does not establish a compelling cost or speed advantage. For new deployments, prefer a model with stronger task evidence and clear operating characteristics. This version is most useful as a reference point for legacy evaluations.

Assessed September 23, 2026

Editorial notes

Gemini 1.5 Flash from September 2024 has a low measured intelligence result and lacks supplied pricing, context, and tool-use details to support a stronger production case.

The DFO score ranks models on the Artificial Analysis Intelligence Index and is refreshed as new models launch. The write-up and verdict are our own. Feedback?

DFO Verdict

Gemini 1.5 Flash from September 2024 has a low measured intelligence result and lacks supplied pricing, context, and tool-use details to support a stronger production case.

#440 of 718 overall Down 3 this week

Benchmarks

Intelligence Index 7.1 #320 of 443 · Artificial Analysis
Coding Index Not published yet Artificial Analysis
Agentic Index Not published yet Artificial Analysis
Creative Writing Not rated Arena rating
Instruction Following Not rated Arena rating

Artificial Analysis data refreshed Oct 23, 2026. Arena ratings from the Oct 20, 2026 text leaderboard, with style control.

Artificial Analysis has not published coding or agentic results for Gemini 1.5 Flash (Sep ’24) yet. Until it does, the model sits below tested models on the Coding and AI Agents lists.

How Gemini 1.5 Flash (Sep ’24) compares

Gemini 1.5 Flash (Sep ’24) ranks #320 of 443 AI models we track for overall intelligence. Gemini 1.5 Flash (Sep ’24) is currently free to use via OpenRouter.

Position in the field
DFO score: ahead of 39% of models #438
worst in fieldmedianbest in field
Price vs frontier peers · $ per 1M tokens
Gemini 1.5 Flash (Sep ’24) $0.00 in $0.00 out
Anthropic: Claude Opus 5.5 $4.00 in $20.00 out
Google: Gemini 4 Argon $2.00 in $10.00 out
Anthropic: Claude Fable 5.1 $10.00 in $50.00 out

Dark bar = input · light bar = output, scaled to the priciest peer.

Context window vs peers · tokens

1M tokens ≈ 8 full-length novels or ~2,500 pages of business documents in a single request.

Frequently asked questions about Gemini 1.5 Flash (Sep ’24)

How much does Gemini 1.5 Flash (Sep ’24) cost?

Gemini 1.5 Flash (Sep ’24) is currently available for free via OpenRouter.

Who created Gemini 1.5 Flash (Sep ’24)?

Gemini 1.5 Flash (Sep ’24) is developed by Google and was released on September 24, 2024.

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