Context Window

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MiMo-V2.6-Pro-UltraSpeed vs Qwen 3 8 27b

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.

Xiaomi

Model

MiMo-V2.6-Pro-UltraSpeed

Image inputTool calling

Context window

1.0M

1,048,576 tokens · ~786K words

Model page
Alibaba

Model

Qwen 3 8 27b

Image inputTool calling

Context window

66K

65,536 tokens · ~49K 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.

MiMo-V2.6-Pro-UltraSpeed1.0M
Qwen 3 8 27b66K

MiMo-V2.6-Pro-UltraSpeed has about 16× the context window of the other in this pair.

Token calculator →Memory savings →

MiMo-V2.6-Pro-UltraSpeed has 1500% more context capacity (1048K vs 65K tokens). Qwen 3 8 27b is 77% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use MiMo-V2.6-Pro-UltraSpeed. Its 1048K context fits entire documents without chunking (vs 65K).

  • RAG / high-volume retrieval

    Use Qwen 3 8 27b. Input tokens are 77% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use MiMo-V2.6-Pro-UltraSpeed. 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.

SpecMiMo-V2.6-Pro-UltraSpeedQwen 3 8 27b
Context window1,048,576 tokens (1048K)65,536 tokens (65K)
Max output tokens131,072 tokens (131K)32,768 tokens (32K)
Speed tierBalancedFast
VisionYesYes
Function callingYesYes
Extended thinkingYesYes
Prompt cachingYesNo
Batch APINoNo
Release dateSep 2026N/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.

ProviderMiMo-V2.6-Pro-UltraSpeed inMiMo-V2.6-Pro-UltraSpeed outQwen 3 8 27b inQwen 3 8 27b out
Cerebras——$0.990/M$1.49/M
Openrouter$4.35/M$8.70/M——

Frequently asked questions

MiMo-V2.6-Pro-UltraSpeed has a larger context window: 1048K tokens vs 65K. 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