Compare

DeepSeek V4 Flash (free) vs Grok 4.20 Multi-Agent

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.

Deepseek

Model

DeepSeek V4 Flash (free)

Tool calling

Context window

256K

256,000 tokens · ~192K words

Model page
Xai

Model

Grok 4.20 Multi-Agent

Image input

Context window

2M

2,000,000 tokens · ~1.5M 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.

DeepSeek V4 Flash (free)256K
Grok 4.20 Multi-Agent2M

Grok 4.20 Multi-Agent has about 7.8× the context window of the other in this pair.

Grok 4.20 Multi-Agent has 681% more context capacity (2000K vs 256K tokens).

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Grok 4.20 Multi-Agent. Its 2000K context fits entire documents without chunking (vs 256K).

Full specs

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

SpecDeepSeek V4 Flash (free)Grok 4.20 Multi-Agent
Context window256,000 tokens (256K)2,000,000 tokens (2000K)
Max output tokens256,000 tokens (256K)N/A
Speed tierFastBalanced
VisionNoYes
Function callingYesNo
Extended thinkingYesYes
Prompt cachingNoYes
Batch APINoNo
Release dateApr 2026Mar 2026

Frequently asked questions

Grok 4.20 Multi-Agent has a larger context window: 2000K tokens vs 256K. 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.

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