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GPT-5.6 Terra and Luna Just Got Cheaper on Bedrock!

AWS What's New ★★ View Markdown
#aws#ai

Hey everyone, it's Shiichan! I caught a pricing update around Amazon Bedrock today, so let me walk you through it quickly.

AWS What's New aws.amazon.com

What was announced?

AWS's What's New page announced updated Amazon Bedrock pricing for two models in OpenAI's GPT-5.6 lineup: GPT-5.6 Terra and GPT-5.6 Luna.

Here's how the two models are positioned.

  • GPT-5.6 Terra: the balanced model for everyday production work, delivering GPT-5.5-level performance at a lower cost
  • GPT-5.6 Luna: the fast, affordable model for high-volume inference, built for when latency and cost per token matter most

Meanwhile, GPT-5.6 Sol, the third model in the GPT-5.6 family, keeps its existing pricing unchanged.

The story so far

OpenAI's models on Bedrock have always been priced to match OpenAI's own first-party rates. This update is a partial one: only Terra and Luna move to new pricing, while Sol stays exactly where it was.

What changes

The headline is simple: if you're running Terra or Luna on Bedrock, your costs may go down.

  • Teams running everyday production workloads on Terra get lower costs without giving up performance
  • Teams handling high-volume requests on Luna benefit from a lower cost per token, which helps optimize inference spend
  • Since Bedrock pricing matches OpenAI's first-party rates, there's no premium (or discount) for using Bedrock specifically, and usage still counts toward your existing AWS commitments

If you're already using Terra or Luna in a supported region, the new pricing applies automatically. No extra sign-up needed.

Dive Deep

Regional availability differs slightly by model, so here's the breakdown.

  • GPT-5.6 Sol: US East (N. Virginia), US East (Ohio)
  • GPT-5.6 Terra and Luna: US East (N. Virginia), US East (Ohio), and US West (Oregon)

Notably, Terra and Luna are available in one extra region (US West Oregon) compared to Sol.

One thing to flag: AWS's announcement page doesn't spell out the actual dollar figures or discount amounts. It points readers to the Amazon Bedrock pricing page for the current numbers, so check there if you need exact rates.

Wrap-up

  • OpenAI's GPT-5.6 Terra and GPT-5.6 Luna just got cheaper on Amazon Bedrock
  • GPT-5.6 Sol's pricing is unchanged
  • Terra targets everyday production use, Luna targets fast, high-volume inference
  • Sol is available in 2 regions; Terra and Luna are available in 3 (adding US West Oregon)
  • Usage still counts toward your existing AWS commitments
  • This one's for teams already running GPT-5.6 on Bedrock, especially anyone optimizing for cost!

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