Context Window

Compare

Meta Llama 3 1 70b Instruct vs Meta Llama3 1 8b Instruct

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.

Meta

Model

Meta Llama 3 1 70b Instruct

Tool calling

Context window

131K

131,072 tokens · ~98K words

Model page
Meta

Model

Meta Llama3 1 8b Instruct

Tool calling

Context window

128K

128,000 tokens · ~96K 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.

Meta Llama 3 1 70b Instruct131K
Meta Llama3 1 8b Instruct128K

Meta Llama 3 1 70b Instruct has about 1× the context window of the other in this pair.

Token calculator →Memory savings →

Meta Llama 3 1 70b Instruct has 2% more context capacity (131K vs 128K tokens). Meta Llama 3 1 70b Instruct is 54% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Meta Llama 3 1 70b Instruct. Its 131K context fits entire documents without chunking (vs 128K).

  • RAG / high-volume retrieval

    Use Meta Llama 3 1 70b Instruct. Input tokens are 54% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Meta Llama 3 1 70b Instruct. 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.

SpecMeta Llama 3 1 70b InstructMeta Llama3 1 8b Instruct
Context window131,072 tokens (131K)128,000 tokens (128K)
Max output tokens131,072 tokens (131K)2,048 tokens (2K)
Speed tierDeepFast
VisionNoNo
Function callingYesYes
Extended thinkingNoNo
Prompt cachingNoNo
Batch APINoNo
Release dateN/AN/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.

ProviderMeta Llama 3 1 70b Instruct inMeta Llama 3 1 70b Instruct outMeta Llama3 1 8b Instruct inMeta Llama3 1 8b Instruct out
Aws Bedrock——$0.220/M$0.220/M
Deepinfra$0.100/M$0.280/M——
Together Ai$0.880/M$0.880/M——

Frequently asked questions

Meta Llama 3 1 70b Instruct 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

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