GPT-5.4 lands in Microsoft Foundry

OpenAI's GPT-5.4 is now generally available through Microsoft Foundry, the enterprise AI deployment platform built into Microsoft's cloud infrastructure. The release marks another step in the ongoing push to make AI models not just capable, but consistently reliable in real production environments — the kind where a model needs to follow through on complex, multi-step tasks without constant human supervision.

The new model ships with a range of improvements aimed squarely at organizations running AI workflows at scale. These include more stable reasoning across long interactions, better adherence to instructions, lower latency, and the ability to invoke tools more dependably. GPT-5.4 also handles file access, data extraction, and code execution as part of structured agentic workflows. On the output side, it's designed to produce higher-quality documents, spreadsheets, and presentations with more consistent formatting. Computer use capabilities — allowing the model to interact with software interfaces directly — are described as coming shortly after launch.

For those who need more analytical depth, there's also GPT-5.4 Pro. This premium variant is built for scenarios where thoroughness matters more than speed, such as scientific research or complex multi-variable problems. It adds multi-path reasoning — meaning the model can explore alternative approaches before committing to a final answer — along with greater stability across sustained analytical tasks. The tradeoff is higher cost and longer processing time, so it's positioned as a complement to the standard model rather than a replacement.

Pricing for GPT-5.4 in Microsoft Foundry starts at $2.50 per million input tokens and $15.00 per million output tokens for context lengths up to 272K tokens. Longer context windows are priced at $5.00 and $22.50 respectively. GPT-5.4 Pro comes in at $30.00 per million input tokens and $180.00 per million output tokens. At launch, the standard model is available in Standard Global and Standard Data Zone (US) deployments; GPT-5.4 Pro is available in Standard Global.

For businesses, the practical significance of this release is less about a new benchmark score and more about reduced friction in day-to-day AI use. Fewer mid-workflow failures, less prompt engineering, and more predictable outputs are the kind of improvements that make AI tools easier to actually rely on — whether that's for customer support automation, internal document workflows, or developer tooling.

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