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Large Language ModelsAI Business & IndustryAmazon AI BlogPublished: Sep 30, 2026, 06:00 JST

GPT-6.1 Sol lands on Amazon Bedrock, matching Astra at one-fifth cost

GPT-6.1 Sol lands on Amazon Bedrock, matching Astra at one-fifth cost

3 Key Points

  1. What happened

    GPT-6.1 Sol is now generally available on Amazon Bedrock. According to OpenAI, it matches GPT-6 Astra on DeepSWE v1.1 at roughly one-fifth the cost per task and beats GPT-6 Sol's best score by 6.4 percentage points.

  2. Why it matters

    Cheaper reasoning per task could lower the total cost of running AI agents, since fewer wrong turns mean fewer tool calls and less human intervention. The claim is OpenAI's own and hinges on whether real workloads see the same results.

  3. What to watch

    The cost comparison rests on a single benchmark, DeepSWE v1.1, not production workloads, so savings may vary by task. Note that classifier-flagged traffic is retained by AWS for up to 30 days unless zero data retention is requested.

WHO IT HITSEnterprise development teams building AI agents on Amazon Bedrock, and the platform and security engineers who govern model access through IAM policies, CloudTrail, and VPC endpoints.

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Context & Analysis

OpenAI's GPT-6.1 Sol is now generally available on Amazon Bedrock, running on an inference engine built for performance, security, and reliability at scale. AWS describes it as a major upgrade to GPT-6 Sol, aimed at agentic coding, computer use, and professional work that runs frequently.

The pitch rests on how reasoning quality shapes the economics of an agent task. AWS argues that a wrong turn can add model interactions, tool calls, latency, and human intervention, so token prices and reasoning quality both feed into the total cost of completing a task. On that logic, GPT-6.1 Sol's claimed efficiency on software engineering workflows, where an agent must understand an unfamiliar repository, trace dependencies, and validate a change, is presented as the lever that cuts cost per task.

Beyond coding, AWS positions the model for interpreting complex documents, improving multistep workflows across business tools, and recognizing when a tool has failed or an action is restricted. On Bedrock, governance and security controls such as IAM policies, CloudTrail auditing, VPC endpoints, and hardware-isolated inference are framed as complementary safeguards so people stay involved at consequential decisions. The open question is whether the benchmark-level cost advantage translates to production workloads, which is likely to depend on the specific tasks customers run.

FAQ
How much cheaper is GPT-6.1 Sol than GPT-6 Astra?
According to OpenAI, GPT-6.1 Sol matches GPT-6 Astra on DeepSWE v1.1 at roughly one-fifth the cost per task.
Is my data used to train models when I use GPT-6.1 Sol on Amazon Bedrock?
Your inference data isn't used for model training, and using GPT-6.1 Sol doesn't require you to opt into sharing your data with OpenAI. Classifier-flagged traffic is retained by AWS for up to 30 days for automated abuse detection, and you can request zero data retention through your AWS account team.
How do I get started with GPT-6.1 Sol?
You can get started in the Amazon Bedrock console or programmatically through supported Amazon Bedrock APIs.
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