Context Window

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GPT-4o-mini Search Preview vs Moonshot V1 128k

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.

Openai

Model

GPT-4o-mini Search Preview

Image inputTool calling

Context window

128K

128,000 tokens · ~96K words

Model page
Moonshot

Model

Moonshot V1 128k

Tool calling

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.

GPT-4o-mini Search Preview128K
Moonshot V1 128k131K

Moonshot V1 128k has about 1× the context window of the other in this pair.

Token calculator →Memory savings →

Moonshot V1 128k has 2% more context capacity (131K vs 128K tokens). GPT-4o-mini Search Preview is 92% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Moonshot V1 128k. Its 131K context fits entire documents without chunking (vs 128K).

  • RAG / high-volume retrieval

    Use GPT-4o-mini Search Preview. Input tokens are 92% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Moonshot V1 128k. Its 131K 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.

SpecGPT-4o-mini Search PreviewMoonshot V1 128k
Context window128,000 tokens (128K)131,072 tokens (131K)
Max output tokens16,384 tokens (16K)131,072 tokens (131K)
Speed tierFastBalanced
VisionYesNo
Function callingYesYes
Extended thinkingNoNo
Prompt cachingYesNo
Batch APIYesNo
Release dateMar 2025N/A

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.

ProviderGPT-4o-mini Search Preview inGPT-4o-mini Search Preview outMoonshot V1 128k inMoonshot V1 128k out
Moonshot——$2.00/M$5.00/M
Openai$0.150/M$0.600/M——

Frequently asked questions

Moonshot V1 128k has a larger context window: 131K tokens vs 128K. For long documents, large codebases, or extended agent sessions, the larger context window reduces the need to chunk inputs or summarize history.

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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