Context Window

Compare

Amazon Titan Text Express vs Llama 3.1 Nemotron 70B 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.

Amazon

Model

Amazon Titan Text Express

Context window

42K

42,000 tokens · ~32K words

Model page
Nvidia

Model

Llama 3.1 Nemotron 70B Instruct

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.

Amazon Titan Text Express42K
Llama 3.1 Nemotron 70B Instruct131K

Llama 3.1 Nemotron 70B Instruct has about 3.1× the context window of the other in this pair.

Token calculator →Memory savings →

Llama 3.1 Nemotron 70B Instruct has 212% more context capacity (131K vs 42K tokens).

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Llama 3.1 Nemotron 70B Instruct. Its 131K context fits entire documents without chunking (vs 42K).

  • Long output (reports, code files)

    Use Llama 3.1 Nemotron 70B Instruct. Its 16K 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.

SpecAmazon Titan Text ExpressLlama 3.1 Nemotron 70B Instruct
Context window42,000 tokens (42K)131,072 tokens (131K)
Max output tokens8,000 tokens (8K)16,384 tokens (16K)
Speed tierBalancedDeep
VisionNoNo
Function callingNoYes
Extended thinkingNoNo
Prompt cachingNoNo
Batch APINoNo
Release dateN/AOct 2024

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.

ProviderAmazon Titan Text Express inAmazon Titan Text Express outLlama 3.1 Nemotron 70B Instruct inLlama 3.1 Nemotron 70B Instruct out
Aws Bedrock$1.30/M$1.70/M——

Frequently asked questions

Llama 3.1 Nemotron 70B Instruct has a larger context window: 131K tokens vs 42K. 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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