Live survey286 models · 13 providers · 17,592 auditsAudited Using Git Worktrees · SAFE →What changedHow we verifyllms.txt

Model comparison · Updated 17 Aug 2026

Nano Banana Pro (Gemini 3 Pro Image) vs GPT-5.2 Chat

GPT-5.2 Chat is about 1.1× cheaper on input ($1.75 against $2.00 per 1M tokens), though Nano Banana Pro (Gemini 3 Pro Image) is cheaper on output. Nano Banana Pro (Gemini 3 Pro Image) has the larger context window (131K against 128K 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 $2,048 for GPT-5.2 Chat.

Ask an AI about this pageGChatGPTCClaudePPerplexityGeGeminiXGrok
More
CoCopilotAIGoogle AI Mode
Cite

Cite this page

ModelsAtlas. “Nano Banana Pro (Gemini 3 Pro Image) vs GPT-5.2 Chat”. Retrieved 17 Aug 2026. https://modelsatlas.com/compare/google/gemini-3-pro-image/vs/openai/gpt-5-2-chat

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

GPT-5.2 Chat

by OpenAI · weights not marked open · GRIDE2

Input / 1M
$1.75
observed We measured
Source
Our catalogue
Retrieved
17 Aug 2026
Output / 1M$14.00
Context128K

Key numbers

Standard tier · highlighted = better

Nano Banana Pro (Gemini 3 Pro Image)
GPT-5.2 Chat
Input / 1M tokens
$2.00
$1.75
Output / 1M tokens
$12.00
$14.00
Batch input / output
Not listed
Not listed
Context window
131,072
128,000
Input types
Not disclosed
Not disclosed
Weights
Not marked open
Not marked open
Tiers listed
standard
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
$2,048/mo
RAG over documents2k queries/day · 12k in, 500 out
$1,800/mo
$1,680/mo
Coding agent300 tasks/day · 60k in, 8k out
$1,944/mo
$1,953/mo

Nano Banana Pro (Gemini 3 Pro Image)   GPT-5.2 Chat · 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)

1 square apart. GPT-5.2 Chat (E2) sits 1 context band smaller than Nano Banana Pro (Gemini 3 Pro Image) (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). Same square as GPT-5.2 Chat: Nano Banana 2.1 ($1.50), Mixtral 8x22B Instruct ($2.00), Command R+ (08-2024) ($2.50). Open E3 · Open E2

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 · E3o4 Mini High · E3Claude Haiku 4.5 · E3Mixtral 8x22B Instruct · E2Nano Banana 2.1 · E2Command R+ (08-2024) · E2GPT-4o · E2GPT Audio · E2Nano Banana Pro (Gemini 3 Pro Image)Nano Banana Pro (Gemini 3 Pro Image)GPT-5.2 ChatGPT-5.2 Chat
Nano Banana Pro (Gemini 3 Pro Image)GPT-5.2 ChatNearest neighboursOpen weights
View the map as a table (2 squares)
SquarePrice bandContext bandModels
GRIDE2$1–332–128KGPT-5.2 Chat, Mixtral 8x22B Instruct, Nano Banana 2.1, Command R+ (08-2024), GPT-4o, GPT Audio
GRIDE3$1–3128–256KNano Banana Pro (Gemini 3 Pro Image), o3, Command A, o3 Mini High, o4 Mini, o4 Mini High, Claude Haiku 4.5

Capabilities side by side

Only what our records list

Nano Banana Pro (Gemini 3 Pro Image)
GPT-5.2 Chat
Vision input
Not disclosed
Not disclosed
Audio input
Not disclosed
Not disclosed
Open weights
Not marked open
Not marked open
Batch tier
Not listed
Not listed
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…

  • output dominates your bill: $12.00 per 1M output against $14.00
  • your prompts are long: it takes 131,072 tokens against 128,000

Choose GPT-5.2 Chat if…

  • you pay by the token: it costs $1.75 per 1M input against $2.00

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 GPT-5.2 Chat?
We do not benchmark quality, so we cannot say. On the recorded numbers: GPT-5.2 Chat is about 1.1× cheaper on input ($1.75 against $2.00 per 1M tokens), though Nano Banana Pro (Gemini 3 Pro Image) is cheaper on output. Nano Banana Pro (Gemini 3 Pro Image) has the larger context window (131K against 128K 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 $2,048 for GPT-5.2 Chat. 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 GPT-5.2 Chat?
GPT-5.2 Chat: $1.75 against $2.00 per 1M input tokens, and $14.00 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. GPT-5.2 Chat: $1.75 input and $14.00 output. Standard tier, USD.
Which has the larger context window?
Nano Banana Pro (Gemini 3 Pro Image), with 131,072 tokens. GPT-5.2 Chat has 128,000 tokens.
Do both offer batch pricing?
Neither lists a batch tier in our catalogue.
Can both read images or audio?
Input types recorded for Nano Banana Pro (Gemini 3 Pro Image): none recorded. For GPT-5.2 Chat: 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. GPT-5.2 Chat: 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 $2,048 for GPT-5.2 Chat. 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 →

GPT-5.2 Chat

By OpenAI. $1.75 input and $14.00 output per 1M tokens, 128K context, atlas square E2. Tiers listed: standard.

Full specs & pricing →

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

Keep going in your AI

Opens with this page as the source. We add nothing else to the prompt.