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Model comparison · Updated 17 Aug 2026

Nano Banana Pro (Gemini 3 Pro Image) vs o4 Mini

o4 Mini is about 1.8× cheaper on input ($1.10 against $2.00 per 1M tokens) and on output. o4 Mini has the larger context window (200K against 131K tokens). For a support chatbot at 10,000 chats a day, the standard-tier bill is about $1,980 a month for Nano Banana Pro (Gemini 3 Pro Image) and $891 for o4 Mini.

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ModelsAtlas. “Nano Banana Pro (Gemini 3 Pro Image) vs o4 Mini”. Retrieved 17 Aug 2026. https://modelsatlas.com/compare/google/gemini-3-pro-image/vs/openai/o4

Model A

Nano Banana Pro (Gemini 3 Pro Image)

by Google · weights not marked open · GRIDE3

Input / 1M
$2.00
observed We measured
Source
Our catalogue
Retrieved
17 Aug 2026
Output / 1M$12.00
Context131K
vs

Model B

o4 Mini

by OpenAI · weights not marked open · GRIDE3

Input / 1M
$1.10
observed We measured
Source
Our catalogue
Retrieved
17 Aug 2026
Output / 1M$4.40
Context200K

Key numbers

Standard tier · highlighted = better

Nano Banana Pro (Gemini 3 Pro Image)
o4 Mini
Input / 1M tokens
$2.00
$1.10
Output / 1M tokens
$12.00
$4.40
Batch input / output
Not listed
$0.55 / $2.20
Context window
131,072
200,000
Input types
Not disclosed
Not disclosed
Weights
Not marked open
Not marked open
Tiers listed
standard
batch, standard
Prices checked
2026-08-17
2026-08-17

What it costs for real workloads

Monthly, standard tier, 30 days

Support chatbot10k chats/day · 1.5k in, 300 out
$1,980/mo
$891/mo
RAG over documents2k queries/day · 12k in, 500 out
$1,800/mo
$924/mo
Coding agent300 tasks/day · 60k in, 8k out
$1,944/mo
$911/mo

Nano Banana Pro (Gemini 3 Pro Image)   o4 Mini · Derived from the standard-tier prices above, input and output tokens per request as stated, 30 days. Excludes caching discounts and batch. Try your own numbers.

On the atlas

Price band (A–H) × context band (1–6)

Same square. Nano Banana Pro (Gemini 3 Pro Image) and o4 Mini share E3.

Same square as Nano Banana Pro (Gemini 3 Pro Image): Claude Haiku 4.5 ($1.00), Grok Build 0.1 ($1.00), o3 Mini High ($1.10). Open E3

AFreeB<$0.10C$0.10–0.30D$0.30–1E$1–3F$3–10G$10–30H$30+1<32K232–128K3128–256K4256K–1M51M6>1MINPUT PRICE PER 1M TOKENS →CONTEXT WINDOW ↑ · position within a square follows the real valueo3 · E3Command A · E3o3 Mini High · E3o4 Mini High · E3Claude Haiku 4.5 · E3Grok Build 0.1 · E3Nano Banana Pro (Gemini 3 Pro Image)Nano Banana Pro (Gemini 3 Pro Image)o4 Minio4 Mini
Nano Banana Pro (Gemini 3 Pro Image)o4 MiniNearest neighboursOpen weights
View the map as a table (1 squares)
SquarePrice bandContext bandModels
GRIDE3$1–3128–256KNano Banana Pro (Gemini 3 Pro Image), o4 Mini, o3, Command A, o3 Mini High, o4 Mini High, Claude Haiku 4.5, Grok Build 0.1

Capabilities side by side

Only what our records list

Nano Banana Pro (Gemini 3 Pro Image)
o4 Mini
Vision input
Not disclosed
Not disclosed
Audio input
Not disclosed
Not disclosed
Open weights
Not marked open
Not marked open
Batch tier
Not listed
Supported
Free tier
Not listed
Not listed
Thinking tier
Not listed
Not listed

Neither record lists input types, so we do not claim any.

Which should you choose?

Editorial

Choose Nano Banana Pro (Gemini 3 Pro Image) if…

Nothing in the recorded numbers favours Nano Banana Pro (Gemini 3 Pro Image) over o4 Mini. Pick it for what our records do not cover — your own tests, or an account you already have with Google.

Choose o4 Mini if…

  • you pay by the token: it costs $1.10 per 1M input against $2.00
  • output dominates your bill: $4.40 per 1M output against $12.00
  • your prompts are long: it takes 200,000 tokens against 131,072
  • work can wait: it lists a batch tier and the other does not

Each reason is a fact from the tables above. Picking between them is our judgement, and we do not benchmark quality: price and context are what we can measure, so test both on your own prompts before you commit.

Questions

Is Nano Banana Pro (Gemini 3 Pro Image) better than o4 Mini?
We do not benchmark quality, so we cannot say. On the recorded numbers: o4 Mini is about 1.8× cheaper on input ($1.10 against $2.00 per 1M tokens) and on output. o4 Mini has the larger context window (200K against 131K tokens). For a support chatbot at 10,000 chats a day, the standard-tier bill is about $1,980 a month for Nano Banana Pro (Gemini 3 Pro Image) and $891 for o4 Mini. Which is better for you depends on your task; test both on your own prompts.
Which is cheaper, Nano Banana Pro (Gemini 3 Pro Image) or o4 Mini?
o4 Mini: $1.10 against $2.00 per 1M input tokens, and $4.40 against $12.00 per 1M output, on standard pricing.
How much does each cost per 1M tokens?
Nano Banana Pro (Gemini 3 Pro Image): $2.00 input and $12.00 output. o4 Mini: $1.10 input and $4.40 output. Standard tier, USD.
Which has the larger context window?
o4 Mini, with 200,000 tokens. Nano Banana Pro (Gemini 3 Pro Image) has 131,072 tokens.
Do both offer batch pricing?
Nano Banana Pro (Gemini 3 Pro Image) lists no batch tier. o4 Mini lists a batch tier, at 50% of its standard price.
Can both read images or audio?
Input types recorded for Nano Banana Pro (Gemini 3 Pro Image): none recorded. For o4 Mini: none recorded. Where a record lists none we say so rather than guess; check each vendor's documentation before relying on a capability.
Is either model open-weight?
Nano Banana Pro (Gemini 3 Pro Image): not marked open-weight in our records. o4 Mini: not marked open-weight in our records.
What would each cost for a support chatbot?
At 10,000 chats a day, 1,500 input and 300 output tokens each, 30 days, standard tier: about $1,980 a month for Nano Banana Pro (Gemini 3 Pro Image) and $891 for o4 Mini. This is our calculation from the listed prices, not a quote.

About the two models

Nano Banana Pro (Gemini 3 Pro Image)

By Google. $2.00 input and $12.00 output per 1M tokens, 131K context, atlas square E3. Tiers listed: standard.

Full specs & pricing →

o4 Mini

By OpenAI. $1.10 input and $4.40 output per 1M tokens, 200K context, atlas square E3. Tiers listed: batch, standard.

Full specs & pricing →

Compare Nano Banana Pro (Gemini 3 Pro Image) with…

Compare o4 Mini with…

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