Context Window

Compare

Amazon Titan Text Premier vs Gpt 5 3 Chat Latest

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 Premier

Context window

42K

42,000 tokens · ~32K words

Model page
Openai

Model

Gpt 5 3 Chat Latest

Image inputTool 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.

Amazon Titan Text Premier42K
Gpt 5 3 Chat Latest128K

Gpt 5 3 Chat Latest has about 3× the context window of the other in this pair.

Token calculator →Memory savings →

Gpt 5 3 Chat Latest has 204% more context capacity (128K vs 42K tokens). Amazon Titan Text Premier is 71% cheaper on input.

Quick verdicts

Short takeaways — validate with your own workloads.

  • Long document processing

    Use Gpt 5 3 Chat Latest. Its 128K context fits entire documents without chunking (vs 42K).

  • RAG / high-volume retrieval

    Use Amazon Titan Text Premier. Input tokens are 71% cheaper — critical when sending large retrieved contexts.

  • Long output (reports, code files)

    Use Amazon Titan Text Premier. Its 32K 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 PremierGpt 5 3 Chat Latest
Context window42,000 tokens (42K)128,000 tokens (128K)
Max output tokens32,000 tokens (32K)16,384 tokens (16K)
Speed tierBalancedBalanced
VisionNoYes
Function callingNoYes
Extended thinkingNoYes
Prompt cachingNoYes
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 Titan Text Premier inAmazon Titan Text Premier outGpt 5 3 Chat Latest inGpt 5 3 Chat Latest out
Aws Bedrock$0.500/M$1.50/M——
Openai——$1.75/M$14.00/M

Frequently asked questions

Gpt 5 3 Chat Latest has a larger context window: 128K 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.

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.

Calculate your savingsLearn about Mem0

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