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Nano Banana 2.1 vs GPT-5.2 Pro

Nano Banana 2.1 costs 22.4x less per output token than GPT-5.2 Pro ($7.50 vs $168.00 per million). Updated October 22, 2026; no benchmark has tested both models yet.

Replace Nano Banana 2.1 Replace GPT-5.2 Pro
Nano Banana 2.1Google
Coding
No data
Overall
No data
Output $/M
$7.50
GPT-5.2 ProOpenAI
Coding
No data
Overall
No data
Output $/M
$168.00
vs $7.50 vs $168.00 per 1M output tokens. Nano Banana 2.1 is 22.4x cheaper.

Nano Banana 2.1 or GPT-5.2 Pro: which to pick

Neither model has a coding score yet, so the two cannot be ranked on coding.

Pick Nano Banana 2.1 for output tokens 22.4x cheaper ($7.50 vs $168.00 per million).

Model ANano Banana 2.1GoogleNot benchmarkedNo coding benchmarkNo cost per solved taskModel BGPT-5.2 ProOpenAINot benchmarkedNo coding benchmarkNo cost per solved task

No benchmark has tested both yet. Nano Banana 2.1 has results on Design Arena: images, Design Arena: graphic design and Design Arena: logos; GPT-5.2 Pro on Epoch Capabilities Index, ARC-AGI and ARC-AGI-2. Compare them on price and context instead.

Which one for your work

Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.

At a glance

Coding index
Nano Banana 2.1 not benchmarked, GPT-5.2 Pro not benchmarked.
Widest category
None yet: no category has been tested on both models.
Widest single gap
None yet: no benchmark has tested both models.
Output price
Nano Banana 2.1 $7.50 against GPT-5.2 Pro $168.00 per million output tokens, 22.4x apart.
Context window
Nano Banana 2.1 takes 66K tokens, GPT-5.2 Pro 400K.

Benchmark by benchmark

Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.

IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
Intelligence benchmarks for Nano Banana 2.1 and GPT-5.2 Pro
BenchmarkNano Banana 2.1GPT-5.2 ProLeader
Epoch Capabilities IndexNot measured156.3Only GPT-5.2 Pro measured
Neither model has a result on the other 1 board here
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index4 boards measured
Reasoning benchmarks for Nano Banana 2.1 and GPT-5.2 Pro
BenchmarkNano Banana 2.1GPT-5.2 ProLeader
ARC-AGINot measured90.5%Only GPT-5.2 Pro measured
ARC-AGI-2Not measured54.2%Only GPT-5.2 Pro measured
SimpleBenchNot measured57.4%Only GPT-5.2 Pro measured
Chess puzzlesNot measured60.0%Only GPT-5.2 Pro measured
Neither model has a result on the other 19 boards here
MathDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
Math benchmarks for Nano Banana 2.1 and GPT-5.2 Pro
BenchmarkNano Banana 2.1GPT-5.2 ProLeader
FrontierMath, tiers 1 to 3Not measured74.0%Only GPT-5.2 Pro measured
FrontierMath, tier 4Not measured46.0%Only GPT-5.2 Pro measured
Neither model has a result on the other 12 boards here
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
Knowledge benchmarks for Nano Banana 2.1 and GPT-5.2 Pro
BenchmarkNano Banana 2.1GPT-5.2 ProLeader
PRBench FinanceNot measured46.3%Only GPT-5.2 Pro measured
PRBench LegalNot measured45.4%Only GPT-5.2 Pro measured
Neither model has a result on the other 18 boards here
Image generationDirectional onlyPublic boards, shown as published, kept out of the index5 boards measured
Image generation benchmarks for Nano Banana 2.1 and GPT-5.2 Pro
BenchmarkNano Banana 2.1GPT-5.2 ProLeader
Design Arena: images1291Not measuredOnly Nano Banana 2.1 measured
Design Arena: graphic design1333Not measuredOnly Nano Banana 2.1 measured
Design Arena: logos1277Not measuredOnly Nano Banana 2.1 measured
LMArena Text to Image1328Not measuredOnly Nano Banana 2.1 measured
LMArena Image Edit1426Not measuredOnly Nano Banana 2.1 measured

What each workload costs

Three fixed token mixes at each model's listed price, so per-token rates become a bill.

Chat turn

1K input + 500 output tokens

Nano Banana 2.1$0.0053Fits in one request
GPT-5.2 Pro$0.105Fits in one request

Nano Banana 2.1 costs less

Repository review

50K input + 3K output tokens

Nano Banana 2.1$0.098Fits in one request
GPT-5.2 Pro$1.55Fits in one request

Nano Banana 2.1 costs less

Agent loop

200K input + 10K output tokens

Nano Banana 2.1$0.375Exceeds the context window
GPT-5.2 Pro$5.88Fits in one request

Nano Banana 2.1 costs less

Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.

Specification differences

The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.

Specifications of Nano Banana 2.1 and GPT-5.2 Pro
SpecificationGoogle Nano Banana 2.1OpenAI GPT-5.2 Pro
MakerGoogleOpenAI
WeightsNo public weights listedNo public weights listed
ReleasedOctober 6, 2026December 10, 2025
Context window66K400K
Input $/Mtok$1.50$21.00
Output $/Mtok$7.50$168.00
Coding indexNot benchmarkedNot benchmarked
Independent measurements behind it00
Cost per solved taskNot computableNot computable
SourceOpenRouter listingOpenRouter listing

Questions

Is Nano Banana 2.1 better than GPT-5.2 Pro for coding?

Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Nano Banana 2.1 for output tokens 22.4x cheaper ($7.50 vs $168.00 per million).

Which is cheaper, Nano Banana 2.1 or GPT-5.2 Pro?

Nano Banana 2.1 costs $1.50 per million input tokens and $7.50 per million output tokens; GPT-5.2 Pro costs $21.00 and $168.00. Cost per solved task is known for neither of them.

Which has the bigger context window, Nano Banana 2.1 or GPT-5.2 Pro?

GPT-5.2 Pro, with 400K tokens against 66K.

Has any benchmark tested both Nano Banana 2.1 and GPT-5.2 Pro?

No benchmark has tested both yet. Nano Banana 2.1 has results on Design Arena: images, Design Arena: graphic design and Design Arena: logos; GPT-5.2 Pro on Epoch Capabilities Index, ARC-AGI and ARC-AGI-2. Compare them on price and context instead. Data as of October 22, 2026.

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