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Amazon SageMaker AI now supports custom sequence lengths for serverless model customization jobs

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AWS·Oct 21, 2026, 08:00 AMFeatureAI-assisted summary

Summary

Added configurable sequence length for serverless model customization jobs via hyperparameters
Supports dataset_max_len for SFT/DPO and max_prompt_length/max_response_length for RFT up to model‑specific limits (e.g., 16K tokens)
Available in multiple regions and accessible through SageMaker Studio, Python SDK, and Agent skills

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Official source Last checked Oct 23, 2026, 3:01 AM

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AI-assisted summarysource healthyLast checked Oct 23, 2026, 3:01 AM

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