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Gemini 3.1 Flash Image vs GPT Image 2.5 Flare

Compare Gemini 3.1 Flash Image from Google and GPT Image 2.5 Flare from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.

GoogleGemini 3.1 Flash ImageOpenAIGPT Image 2.5 Flare
Google logo
Gemini 3.1 Flash Image
Google · text, image, pdf, video → text

gemini-3.1-flash-image (Nano Banana 2) features professional-grade visual intelligence, lightning-fast efficiency, and realistic, grounded generative capabilities. This model serves as the high-efficiency counterpart to Gemini 3 Pro Image, optimized for speed and high-volume developer use cases.

Input$0.5 /M
Output$3 /M
OpenAI logo
GPT Image 2.5 Flare
OpenAI · text, image → text

GPT-Image-2.5 Flare is OpenAI's latest image model, the fastest and suited for everyday high-quality image generation. It accepts text and image inputs and produces image outputs. The model supports quality settings: low, medium, high, xhigh, max, and auto.

Input$5 /M
Output$30 /M

Pricing & Specifications

Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.

Gemini 3.1 Flash Image
GPT Image 2.5 Flare
Input /M
$0.5
$5
Output /M
$3
$30
Cache read /M
-
-
Context length
131,072
0
Max output
32,768
0
Time to First Token
327.5 s
-
Throughput
31.7 tok/s
-
Modalities
textimagepdfvideo
textimage
Supported Parameters
thinking
API Formats
Released
May 28, 2026
September 8, 2026

Promotional prices show the discounted rate; see each model page for promotion windows.

Activity Past 30 Days

Daily traffic served through AIHubMix — how demand for each model is trending.

gemini-3.1-flash-imagegpt-image-2.5-flare

Tokens / day

-

Requests / day

-

Performance Past 3 Days

Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.

gemini-3.1-flash-imagegpt-image-2.5-flare

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

Cost calculator

Estimate your monthly bill for the same workload on each model.

Gemini 3.1 Flash Image
$75.00 /mo
GPT Image 2.5 Flare
$750 /mo

Monthly = daily × 30. Discounted rates applied where a promotion is active.

FAQ

Which is cheaper: Gemini 3.1 Flash Image, GPT Image 2.5 Flare?

Gemini 3.1 Flash Image: $3/M output tokens; GPT Image 2.5 Flare: $30/M. Use the cost calculator above to estimate your own workload.

What inputs and capabilities does each model support?

Gemini 3.1 Flash Image accepts text, image, PDF and video input and supports thinking; GPT Image 2.5 Flare accepts text and image input.

Can I call Gemini 3.1 Flash Image and GPT Image 2.5 Flare with the same API key?

Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.

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