API cost decision in 10 seconds

NewGrok Build 0.1 vs Nano Banana (Gemini 2.5 Flash Image)

Pick Nano Banana (Gemini 2.5 Flash Image) for lower cost; pick Grok Build 0.1 only if the larger context window matters more.

Page updated: 2026-05-26T15:08:08Z Data confirmed: 2026-05-26T18:08:02Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Nano Banana (Gemini 2.5 Flash Image) for lower cost; pick Grok Build 0.1 only if the larger context window matters more.

On the standard 1M input plus 500K output workload, Nano Banana (Gemini 2.5 Flash Image) is estimated at $1.55 vs $2 for Grok Build 0.1, saving $0.45 (22.5% lower).

Cost-first pickNano Banana (Gemini 2.5 Flash Image)

Context-first pickGrok Build 0.1

Sample savings$0.4522.5%

10x traffic gap$4.5

Grok Build 0.1 has more context, but Nano Banana (Gemini 2.5 Flash Image) saves $0.45 on the standard workload. At 10x that traffic, the same price gap is about $4.5. Use the calculator below to replace the sample workload with your own token volume.

Cost sensitivity

Workload Sensitivity

Same prices, different token mixes.

Cost winner changes by workload shape: input-heavy / RAG favors Nano Banana (Gemini 2.5 Flash Image), balanced workload favors Nano Banana (Gemini 2.5 Flash Image), and output-heavy chatbot favors Grok Build 0.1.

Workload shape	Token mix	Better pick	Grok Build 0.1	Nano Banana (Gemini 2.5 Flash Image)
Input-heavy / RAG	5M input + 500K output	Nano Banana (Gemini 2.5 Flash Image)	$6	$2.75
Balanced workload	1M input + 1M output	Nano Banana (Gemini 2.5 Flash Image)	$3	$2.8
Output-heavy chatbot	1M input + 5M output	Grok Build 0.1	$11	$12.8

Cheaper input Nano Banana (Gemini 2.5 Flash Image) $1 vs $0.3 / 1M

Nano Banana (Gemini 2.5 Flash Image) is $0.7 cheaper per 1M input tokens (70% lower; 3.33x difference).

Cheaper output Grok Build 0.1 $2 vs $2.5 / 1M

Grok Build 0.1 is $0.5 cheaper per 1M output tokens (20% lower; 1.25x difference).

Larger context Grok Build 0.1 256K vs 32.77K

Grok Build 0.1 has 223.23K more context (7.81x larger).

Sample workload Nano Banana (Gemini 2.5 Flash Image) $2 vs $1.55

Nano Banana (Gemini 2.5 Flash Image) is $0.45 cheaper on the standard workload (22.5% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Grok Build 0.1 Calculating… Estimated API cost

Nano Banana (Gemini 2.5 Flash Image) Calculating… Estimated API cost

Cheaper for this workload Calculating… Difference: calculating…

This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.

Quick Decision

Verdict

Nano Banana (Gemini 2.5 Flash Image) has the lower input price; Grok Build 0.1 has the lower output price; Grok Build 0.1 offers the larger context window. For the 1M input plus 500K output sample, Nano Banana (Gemini 2.5 Flash Image) is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $2 for Grok Build 0.1 and $1.55 for Nano Banana (Gemini 2.5 Flash Image).

Best Fit

Choose Grok Build 0.1 when you care most about lower output-token price, and larger context window.

Choose Nano Banana (Gemini 2.5 Flash Image) when you care most about lower input-token price.

Decision Notes

On the standard 1M input plus 500K output workload, Nano Banana (Gemini 2.5 Flash Image) is estimated at $1.55 vs $2 for Grok Build 0.1, saving $0.45 (22.5% lower).
Nano Banana (Gemini 2.5 Flash Image) is $0.45 cheaper on the standard workload (22.5% lower).
Nano Banana (Gemini 2.5 Flash Image) is $0.7 cheaper per 1M input tokens (70% lower; 3.33x difference).
Grok Build 0.1 is $0.5 cheaper per 1M output tokens (20% lower; 1.25x difference).
Grok Build 0.1 has 223.23K more context (7.81x larger).

Head-to-Head Specs

Feature	NewGrok Build 0.1 (xAI)	Nano Banana (Gemini 2.5 Flash Image) (Google)
Input Price prompt tokens per 1M	$1	$0.3
Completion Price per 1M tokens	$2	$2.5
Sample Workload Cost 1M input + 500K output	$2	$1.55
Context Window	256K	32.77K
Release Date	2026-05-20	2025-10-07
Popularity	#119	#121

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Nano Banana (Gemini 2.5 Flash Image)	On the standard 1M input plus 500K output workload, Nano Banana (Gemini 2.5 Flash Image) is estimated at $1.55 vs $2 for Grok Build 0.1, saving $0.45 (22.5% lower).
High-volume input processing	Nano Banana (Gemini 2.5 Flash Image)	Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill.
Long responses and chatbots	Grok Build 0.1	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Grok Build 0.1	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Gemma 4 31B (free) can replace Nano Banana (Gemini 2.5 Flash Image) when lower sample workload cost matters most: $0.
Gemma 4 26B A4B (free) can replace Nano Banana (Gemini 2.5 Flash Image) when lower sample workload cost matters most: $0.
Lyria 3 Clip Preview can replace Nano Banana (Gemini 2.5 Flash Image) when lower sample workload cost matters most: $0.
Lyria 3 Pro Preview can replace Nano Banana (Gemini 2.5 Flash Image) when lower sample workload cost matters most: $0.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 sample workload cost.
Grok 4.20 offers 2M context with $2.5 sample workload cost.
Owl Alpha offers 1.05M context with $0 sample workload cost.
DeepSeek V4 Flash offers 1.05M context with $0.2 sample workload cost.

Popular competitors

DeepSeek V4 Flash · DeepSeek · #1
Hy3 preview · Tencent · #2
Claude Opus 4.7 · Anthropic · #3
Claude Sonnet 4.6 · Anthropic · #4

Cheaper alternatives

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xAI catalog

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Google catalog

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