# Atlas with Amazon Nova Lite in 2026 > Amazon Nova Lite provides a massive 300,000 token context window, making it a powerful option for Atlas users. Atlas integrates with Amazon Nova Lite, Amazon's low-cost multimodal model, offering a substantial 300,000 token context window for efficient coding tasks. Priced at $0.06 per Mtok input and $0.24 per Mtok output, it's an excellent choice for developers in 2026 seeking a cost-effective solution for large codebases, especially when integrated with existing AWS infrastructure. ## Key takeaways - Amazon Nova Lite offers a massive 300,000 token context window for Atlas. - Input pricing is $0.06 per Mtok, making it roughly 13x cheaper than Nova Pro's input. - Output pricing is $0.24 per Mtok. - Max output is 8,192 tokens, requiring chunking for large refactors. - Billed and authorized entirely through existing AWS IAM, no new API keys needed. - Lacks a dedicated reasoning mode, which impacts multi-step debugging. ## What is Amazon Nova Lite best for with Atlas? Amazon Nova Lite excels within Atlas for tasks requiring a vast context window, offering 300,000 tokens to process large codebases efficiently. This makes it ideal for comprehensive code searches using Axis, the hybrid semantic and keyword code search, or for understanding extensive project knowledge graphs (Map) in 2026. Amazon Nova Lite's 300,000 token context window is a significant advantage for Atlas users. This allows Atlas to perform deep dives into large codebases, leveraging Axis, the hybrid semantic and keyword code search, to retrieve relevant information across many files. Developers can benefit from its ability to hold extensive project knowledge graphs (Map) in memory, enabling more informed decisions during development. For tasks like generating unified diffs for file edits or drafting plans in the read-only plan agent, the large context ensures Atlas has a complete understanding of the surrounding code. Its low input cost of $0.06 per Mtok also makes it suitable for frequent, context-heavy operations where a broad understanding is crucial. This model is particularly well-suited for developers already operating within the AWS ecosystem, as it integrates direct with existing AWS IAM for billing and authorization, eliminating the need for new vendor contracts or API keys. ## What are the cost and context tradeoffs of Amazon Nova Lite? Amazon Nova Lite offers a compelling balance of cost and context, featuring a 300,000 token window at $0.06 per Mtok input, which is roughly 13x cheaper than Nova Pro's input cost. However, its 8,192 token max output means large refactors must be chunked, a key consideration for developers in 2026. The primary strength of Amazon Nova Lite lies in its expansive 300,000 token context window combined with its low input cost of $0.06 per Mtok. This makes it an extremely cost-effective option for processing vast amounts of code and documentation within Atlas, especially when compared to Nova Pro's $0.8 per Mtok input. Developers can leverage this for extensive code indexing by AST declarations using tree-sitter, or for building project knowledge graphs (Map) without incurring prohibitive costs. The tradeoff, however, is its 8,192 token maximum output. This limitation means that Atlas will need to break down large refactoring tasks or extensive code generation into multiple turns, requiring more interaction and potentially slowing down workflows that demand very long, single-pass outputs. Additionally, Amazon Nova Lite lacks a dedicated reasoning mode, which can become apparent during complex, multi-step debugging scenarios where a model with stronger reasoning capabilities might recover more gracefully. ## When should I choose a different model over Amazon Nova Lite for Atlas? While Amazon Nova Lite is cost-effective with its 300,000 token context, developers in 2026 should consider other models for tasks demanding very long, single-pass outputs exceeding 8,192 tokens or for complex multi-step debugging where a dedicated reasoning mode is crucial for recovery. Developers using Atlas should consider an alternative model if their primary workflow involves generating very large code blocks or performing extensive refactors that require outputs exceeding Amazon Nova Lite's 8,192 token maximum. For such tasks, the need to chunk output across multiple turns can introduce friction and reduce efficiency. Another scenario where a different model might be preferable is for highly complex, multi-step debugging or problem-solving tasks. Amazon Nova Lite does not feature a dedicated reasoning mode, which means it may struggle to recover or provide optimal solutions in situations where a more advanced reasoning model would excel. While its input cost is low, the output cost of $0.24 per Mtok should also be factored in for applications that generate a high volume of output tokens, as this could accumulate for iterative, multi-turn interactions. For developers prioritizing raw reasoning power or single-pass large output generation over maximum context window size and low input cost, other models might offer a better fit. ## Setup 1. Configure AWS authentication: Set AWS_PROFILE, or AWS_ACCESS_KEY_ID plus AWS_SECRET_ACCESS_KEY, along with AWS_REGION. AWS_BEARER_TOKEN_BEDROCK and container or web identity credentials also work. 2. Enable Amazon Nova Lite in the Bedrock model access page for your chosen AWS region. 3. Run `atlas models amazon-bedrock` to confirm `amazon.nova-lite-v1:0` resolves correctly. 4. Set "small_model": "amazon-bedrock/amazon.nova-lite-v1:0" in your `atlas.json` file for efficient background calls. 5. Note that Bedrock IDs can carry us., eu., or global. prefixes, and regional pricing may differ, so ensure the ID matches your AWS_REGION. ## FAQ ### What is the context window size for Amazon Nova Lite with Atlas? Amazon Nova Lite provides a substantial 300,000 token context window when used with Atlas, enabling deep understanding of large codebases. ### How much does Amazon Nova Lite cost per token for Atlas users? For Atlas users, Amazon Nova Lite is priced at $0.06 per Mtok for input and $0.24 per Mtok for output. ### Can Amazon Nova Lite handle large code refactors in Atlas? Amazon Nova Lite has an 8,192 token maximum output, so large refactors in Atlas will need to be chunked across multiple turns. ### How is Amazon Nova Lite billed and authorized for Atlas? Amazon Nova Lite is billed and authorized entirely through your existing AWS account via AWS IAM, eliminating the need for separate API keys. ### Does Amazon Nova Lite have a reasoning mode for complex tasks in Atlas? No, Amazon Nova Lite does not include a dedicated reasoning mode, which may affect its performance on complex, multi-step debugging tasks within Atlas. ### Is Amazon Nova Lite a good choice for cost-sensitive Atlas operations? Yes, with an input cost of $0.06 per Mtok, Amazon Nova Lite is roughly 13x cheaper on input than Nova Pro, making it highly cost-effective for Atlas. ### What are the required AWS credentials to use Amazon Nova Lite with Atlas? To use Amazon Nova Lite with Atlas, you need to configure AWS authentication using AWS_PROFILE, or AWS_ACCESS_KEY_ID plus AWS_SECRET_ACCESS_KEY, and AWS_REGION. --- Canonical HTML: https://seashell.sh/resources/models/amazon-nova-lite Source of truth: aeo_pages row `/resources/models/amazon-nova-lite` (segment: Models) (this file is generated from it, never hand-edited). Licence: SeaShell is proprietary with a free core. It is not open source and there is no public source repository.