Context Window

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Nano Banana 2 (Gemini 3.1 Flash Image) vs Hermes 4 405B

This page is context-first: how much text each model can take in one request. Full specs adds capabilities and limits; the pricing matrix below is only about $/million tokens from hosts that list both models.

Google

Model

Nano Banana 2 (Gemini 3.1 Flash Image)

Image input

Context window

131K

131,072 tokens · ~98K words

Model page
Nous Research

Model

Hermes 4 405B

Context window

131K

131,072 tokens · ~98K words

Model page

Context window · side by side

Bar length is relative to the larger of the two windows (100% = max of this pair). This is not pricing.

Nano Banana 2 (Gemini 3.1 Flash Image)131K
Hermes 4 405B131K

Same context window size for both models.

Token calculator →Memory savings →

Nano Banana 2 (Gemini 3.1 Flash Image) and Hermes 4 405B have identical context windows (131K tokens). Nano Banana 2 (Gemini 3.1 Flash Image) is 50% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • RAG / high-volume retrieval

    Use Nano Banana 2 (Gemini 3.1 Flash Image). Input tokens are 50% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Hermes 4 405B. Its 117K max output lets you generate complete artifacts in one request.

Full specs

Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.

SpecNano Banana 2 (Gemini 3.1 Flash Image)Hermes 4 405B
Context window131,072 tokens (131K)131,072 tokens (131K)
Max output tokens65,536 tokens (65K)117,964 tokens (117K)
Speed tierFastDeep
VisionYesNo
Function callingNoNo
Extended thinkingYesYes
Prompt cachingNoNo
Batch APINoNo
Release dateJun 2026Aug 2025

Pricing matrix

Dollar rates only: hosts that list both models, per 1M tokens. For how much text fits, use the context section above — not this table.

ProviderNano Banana 2 (Gemini 3.1 Flash Image) inNano Banana 2 (Gemini 3.1 Flash Image) outHermes 4 405B inHermes 4 405B out
Nebius——$1.00/M$3.00/M
Openrouter$0.500/M$3.00/M$1.00/M$3.00/M

Frequently asked questions

Hermes 4 405B has a larger context window: 131K tokens vs 131K. For long documents, large codebases, or extended agent sessions, the larger context window reduces the need to chunk inputs or summarize history.

Powered by Mem0

Use a smaller model.
Get better results.

Mem0 gives your AI long-term memory so you stop re-sending context on every call. That means you can use a smaller, faster, cheaper model — and still get better answers.

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Example: a multi-turn chat session

Without Mem0~128K tokens sent
Full history
Repeated info
Old context
With Mem0~20K tokens sent
Key memories
Current turn

80% less to send — works with any model