Models

Gemini 2.0 Flash Preview Image Generation vs GPT 5.6 Luna

Compare Gemini 2.0 Flash Preview Image Generation from Google and GPT 5.6 Luna 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 2.0 Flash Preview Image GenerationOpenAIGPT 5.6 Luna
Google logo
Gemini 2.0 Flash Preview Image Generation
Google · text, image → text

Gemini 2.0 Flash EXP is the official preview version of the drawing model. Compared to Imagen 3.0, Gemini’s image generation is better suited for scenarios that require contextual understanding and reasoning, rather than the pursuit of ultimate artistic performance and visual quality.

Input$0.1 /M
Output$0.4 /M
OpenAI logo
GPT 5.6 Luna
OpenAI · text, image → text

GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly corresponds to the nano model tier used in earlier GPT-5 families.

Input$1 /M
Output$6 /M
Cache read$0.1 /M

Pricing & Specifications

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

Gemini 2.0 Flash Preview Image Generation
GPT 5.6 Luna
Input /M
$0.1
$1
Output /M
$0.4
$6
Cache read /M
-
$0.1
Context length
NaN
1,050,000
Max output
0
128,000
Time to First Token
-
2.2 s
Throughput
-
88.4 tok/s
Modalities
textimage
textimage
Supported Parameters
toolsthinkingstructured outputs
API Formats
chat_completions · responses
Released
-
-

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-2.0-flash-preview-image-generationgpt-5.6-luna

Tokens / day

-

Requests / day

-

Performance Past 3 Days

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

gemini-2.0-flash-preview-image-generationgpt-5.6-luna

Throughput (tok/s)

-

TTFT (s)

-

Uptime (%)

-

Cost calculator

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

Gemini 2.0 Flash Preview Image Generation
$12.00 /mo
GPT 5.6 Luna
$150 /mo

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

FAQ

Which is cheaper: Gemini 2.0 Flash Preview Image Generation, GPT 5.6 Luna?

Gemini 2.0 Flash Preview Image Generation: $0.4/M output tokens; GPT 5.6 Luna: $6/M. Use the cost calculator above to estimate your own workload.

What inputs and capabilities does each model support?

Gemini 2.0 Flash Preview Image Generation accepts text and image input; GPT 5.6 Luna accepts text and image input and supports tool calling, thinking and structured outputs.

Can I call Gemini 2.0 Flash Preview Image Generation and GPT 5.6 Luna 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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