API cost decision in 10 seconds

Devstral 2 2512 vs Nano Banana (Gemini 2.5 Flash Image)

Pick Devstral 2 2512 when budget and context both matter.

Page updated: 2026-05-26T15:08:08Z Data confirmed: 2026-05-30T18:07:59Z Prices normalized to USD per 1M tokens Sample workload: 1M input + 500K output

Budget verdict

Pick Devstral 2 2512 when budget and context both matter.

On the standard 1M input plus 500K output workload, Devstral 2 2512 is estimated at $1.4 vs $1.55 for Nano Banana (Gemini 2.5 Flash Image), saving $0.15 (9.7% lower).

Cost-first pickDevstral 2 2512

Context-first pickDevstral 2 2512

Sample savings$0.159.7%

10x traffic gap$1.5

Devstral 2 2512 is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $1.5. 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 Devstral 2 2512, and output-heavy chatbot favors Devstral 2 2512.

Workload shape	Token mix	Better pick	Devstral 2 2512	Nano Banana (Gemini 2.5 Flash Image)
Input-heavy / RAG	5M input + 500K output	Nano Banana (Gemini 2.5 Flash Image)	$3	$2.75
Balanced workload	1M input + 1M output	Devstral 2 2512	$2.4	$2.8
Output-heavy chatbot	1M input + 5M output	Devstral 2 2512	$10.4	$12.8

Cheaper input Nano Banana (Gemini 2.5 Flash Image) $0.4 vs $0.3 / 1M

Nano Banana (Gemini 2.5 Flash Image) is $0.1 cheaper per 1M input tokens (25% lower; 1.33x difference).

Cheaper output Devstral 2 2512 $2 vs $2.5 / 1M

Devstral 2 2512 is $0.5 cheaper per 1M output tokens (20% lower; 1.25x difference).

Larger context Devstral 2 2512 262.14K vs 32.77K

Devstral 2 2512 has 229.38K more context (8x larger).

Sample workload Devstral 2 2512 $1.4 vs $1.55

Devstral 2 2512 is $0.15 cheaper on the standard workload (9.7% lower).

Estimate your workload cost

Your Workload Cost

Prices are normalized to USD per 1M tokens.

Monthly input tokens Monthly output tokens

Devstral 2 2512 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; Devstral 2 2512 has the lower output price; Devstral 2 2512 offers the larger context window. For the 1M input plus 500K output sample, Devstral 2 2512 is cheaper for the standard workload.

For a 1M input token plus 500K output token workload, the estimated API cost is $1.4 for Devstral 2 2512 and $1.55 for Nano Banana (Gemini 2.5 Flash Image).

Best Fit

Choose Devstral 2 2512 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, Devstral 2 2512 is estimated at $1.4 vs $1.55 for Nano Banana (Gemini 2.5 Flash Image), saving $0.15 (9.7% lower).
Devstral 2 2512 is $0.15 cheaper on the standard workload (9.7% lower).
Nano Banana (Gemini 2.5 Flash Image) is $0.1 cheaper per 1M input tokens (25% lower; 1.33x difference).
Devstral 2 2512 is $0.5 cheaper per 1M output tokens (20% lower; 1.25x difference).
Devstral 2 2512 has 229.38K more context (8x larger).

Head-to-Head Specs

Feature	Devstral 2 2512 (Mistral)	Nano Banana (Gemini 2.5 Flash Image) (Google)
Input Price prompt tokens per 1M	$0.4	$0.3
Completion Price per 1M tokens	$2	$2.5
Sample Workload Cost 1M input + 500K output	$1.4	$1.55
Context Window	262.14K	32.77K
Release Date	2025-12-09	2025-10-07
Popularity	#98	#113

Use-Case Decision Matrix

Use case	Better pick	Why
Budget-constrained production	Devstral 2 2512	On the standard 1M input plus 500K output workload, Devstral 2 2512 is estimated at $1.4 vs $1.55 for Nano Banana (Gemini 2.5 Flash Image), saving $0.15 (9.7% 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	Devstral 2 2512	Lower output-token price matters most when assistants generate many completion tokens.
RAG or long-document work	Devstral 2 2512	A larger context window leaves more room for retrieved passages, conversation history, or source files.

Related Alternatives

Same-provider lower-cost swaps

Mistral Nemo can replace Devstral 2 2512 when lower sample workload cost matters most: $0.04.
Mistral Small 3 can replace Devstral 2 2512 when lower sample workload cost matters most: $0.09.
Ministral 3 3B 2512 can replace Devstral 2 2512 when lower sample workload cost matters most: $0.15.
Mistral Small 3.2 24B can replace Devstral 2 2512 when lower sample workload cost matters most: $0.17.

Larger context near this budget

Llama 4 Scout offers 10M context with $0.23 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.
MiMo-V2.5 offers 1.05M context with $0.28 sample workload cost.

Popular competitors

Hy3 preview · Tencent · #1
DeepSeek V4 Flash · DeepSeek · #2
MiMo-V2.5 · Xiaomi · #3
Claude Sonnet 4.6 · Anthropic · #4

Cheaper alternatives

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Larger context alternatives

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Provider catalogs

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Mistral catalog

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Google catalog

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Open Google models

Devstral 2 2512

Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. It is a 123B-parameter dense transformer model supporting a 256K context window. Devstral 2 supports exploring...

Nano Banana (Gemini 2.5 Flash Image)

Gemini 2.5 Flash Image, a.k.a. "Nano Banana," is now generally available. It is a state of the art image generation model with contextual understanding. It is capable of image generation,...