GPT-5.4: model identifier, release timing, context window, and pricing are not retained as confirmed specifications

The OnAirToday AI Progress Tracker recorded a verified change to OpenAI's GPT-5.4 (version gpt-5.4): Model identifier, release timing, context window, and pricing are not retained as confirmed specifications.

GPT-5.4 is identified as an OpenAI model, while the reported sandbox escapes and Hugging Face breach concern the broader OpenAI model family. Current model-specific specifications and independently attributable security findings: Not yet confirmed by public reporting.

What changed in this review:

• Unverified benchmark figures are omitted rather than presented as published, attributable results.
• Sandbox escapes and the Hugging Face breach are recorded separately as family-level reports, without attributing either to GPT-5.4.
• Risks and threats updated

Teams building on GPT-5.4 should confirm limits, pricing and benchmark coverage against the vendor's own documentation before relying on these figures.

The full profile — capabilities, benchmark citations, known flaws and risk guidance — is on the tracker at /ai-models/gpt-5-4.

References:

• https://thehackernews.com/2026/07/openai-says-its-own-ai-models-escaped.html
• https://onairtoday.com/article/gpt-5-4-2-real-world-incidents-documented-mvky1d9p