Gemini 3.8 Flash vs GPT-5 Image Mini

Pick up to 3 models · pricing, context and capabilities · simulate your product cost

Data updated on September 30, 2026· 217 models

Google3.8 Flash

Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.

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Reasoning estimated
Speed estimated
Input
Output
Context
▲1 M tokens
Max output
66 K
Input, $ per 1M tokens
▲$0.750
Output, $ per 1M tokens
$3.75
Cache read, $ per 1M
$0.075
Batch (input / output)
$0.375 / $1.88
Tool calling
Yes
Released
▲09/02/2026
Knowledge cutoff
—
API id
google/gemini-3.8-flash
OpenAIImage Mini

GPT-5 Image Mini combines OpenAI's advanced language capabilities, powered by GPT-5 Mini, with GPT Image 1 Mini for efficient image generation.

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Reasoning estimated
Speed estimated
Input
Output
Context
400 K tokens
Max output
▲128 K
Input, $ per 1M tokens
$2.50
Output, $ per 1M tokens
▲$2.00
Cache read, $ per 1M
$0.250
Batch (input / output)
—
Tool calling
No
Released
10/16/2025
Knowledge cutoff
—
API id
openai/gpt-5-image-mini
Third model (optional)
text image audio video PDF / file reasoning (1 to 5, estimated by family) speed (1 to 4, estimated by family)▲ best value among the selected

Which is the better API choice: Gemini 3.8 Flash vs GPT-5 Image Mini?

  • Gemini 3.8 Flash: cheapest input (70% less than GPT-5 Image Mini)
  • GPT-5 Image Mini: cheapest output
  • Gemini 3.8 Flash: largest context (1 M)
  • Gemini 3.8 Flash: the newest (09/02/2026)

Pricing is split: Gemini 3.8 Flash wins on input and GPT-5 Image Mini wins on output. Gemini 3.8 Flash accepts more context (1 M). On capabilities, only Gemini 3.8 Flash accepts audio. Gemini 3.8 Flash offers a batch tier at half price for jobs that do not need an immediate answer.

What would your product cost?

Estimate the monthly cost with your app's real volume. List prices, no cache or batch discounts.

Gemini 3.8 Flash
$26.25/mo
GPT-5 Image Mini
$45.50/mo

With Gemini 3.8 Flash you save $19.25 a month versus GPT-5 Image Mini (42% less).

The 6 cheapest for this scenario (chat, last 12 months)

  1. 1Lyria 3 Pro Preview Google$0.00
  2. 2Lyria 3 Clip Preview Google$0.00
  3. 3Qwen3.7 Flash Qwen$0.97
  4. 4DeepSeek V4 Flash 0731 DeepSeek$1.55
  5. 5Ministral 3 3B 2512 Mistral$1.90
  6. 6Qwen3.5-Flash Qwen$2.02

Paste your prompt: tokens and cost per model

Rough estimate (about 4 characters per token). Nothing is sent to any server.

76tokens approx.287 characters

Cost of sending it 1,000 times (input only)

  1. 1Gemini 3.8 Flash Google$0.057
  2. 2Claude Sonnet 5.5 Anthropic$0.152
  3. 3Claude Sonnet 5 Anthropic$0.152
  4. 4GPT-5 Image Mini OpenAI$0.190
  5. 5Claude Opus 5.5 Anthropic$0.304
  6. 6Claude Opus 5 Anthropic$0.380
  7. 7Claude Fable 5.1 Anthropic$0.760
  8. 8Claude Fable 5 Anthropic$0.760

Popular comparisons

Frequently asked questions

Which is the better API choice: Gemini 3.8 Flash vs GPT-5 Image Mini?

Pricing is split: Gemini 3.8 Flash wins on input and GPT-5 Image Mini wins on output. Gemini 3.8 Flash accepts more context (1 M). On capabilities, only Gemini 3.8 Flash accepts audio. Gemini 3.8 Flash offers a batch tier at half price for jobs that do not need an immediate answer.

Which is cheaper: Gemini 3.8 Flash and GPT-5 Image Mini?

Gemini 3.8 Flash is cheaper: $0.750 per million input tokens and $3.75 per million output tokens, versus $2.50 / $2.00 for GPT-5 Image Mini.

Which has more context: Gemini 3.8 Flash and GPT-5 Image Mini?

Gemini 3.8 Flash accepts 1 M tokens of context; GPT-5 Image Mini accepts 400 K.

Which is newer: Gemini 3.8 Flash and GPT-5 Image Mini?

Gemini 3.8 Flash was released on 09/02/2026; GPT-5 Image Mini on 10/16/2025.

What would 10,000 requests a month cost with Gemini 3.8 Flash and GPT-5 Image Mini?

With 1,500 input and 400 output tokens per request: Gemini 3.8 Flash: $26.25; GPT-5 Image Mini: $45.50 a month, at list price.

Where do the prices come from and how often are they updated?

From the public catalogs of OpenRouter, models.dev and LiteLLM, which publish each provider's list prices. They sync once a day and the last update date is shown above the comparison.

What does price per million tokens mean?

It is what the provider charges per million tokens you send (input) or the model generates (output). A token is roughly 4 characters. Output almost always costs more than input.

Sources: OpenRouter, models.dev and LiteLLM. Prices in USD per million tokens, list price, no volume discounts. Prompt tokens are an estimate; each provider's tokenizer may differ.