Context Window

Compare

Amazon Nova Pro vs Amazon Titan Text Express

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 Nova Pro

Image inputTool calling

Context window

300K

300,000 tokens · ~225K words

Model page
Amazon

Model

Amazon Titan Text Express

Context window

42K

42,000 tokens · ~32K 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 Nova Pro300K
Amazon Titan Text Express42K

Amazon Nova Pro has about 7.1× the context window of the other in this pair.

Token calculator →Memory savings →

Amazon Nova Pro has 614% more context capacity (300K vs 42K tokens). Amazon Nova Pro is 38% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Amazon Nova Pro. Its 300K context fits entire documents without chunking (vs 42K).

  • RAG / high-volume retrieval

    Use Amazon Nova Pro. Input tokens are 38% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Amazon Nova Pro. Its 10K 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 Nova ProAmazon Titan Text Express
Context window300,000 tokens (300K)42,000 tokens (42K)
Max output tokens10,000 tokens (10K)8,000 tokens (8K)
Speed tierBalancedBalanced
VisionYesNo
Function callingYesNo
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.

ProviderAmazon Nova Pro inAmazon Nova Pro outAmazon Titan Text Express inAmazon Titan Text Express out
Aws Bedrock$0.800/M$3.20/M$1.30/M$1.70/M

Frequently asked questions

Amazon Nova Pro has a larger context window: 300K 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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Use a smaller model.
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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