Product Launchllmlong contextopenaicodex
GPT-5.4 Adds Million-Token Context and Office Skills
9.7
Relevance ScoreOn March 5, 2026, OpenAI announces GPT-5.4 and GPT-5.4‑pro, available via API, ChatGPT, and the Codex CLI, with an August 31, 2025 knowledge cutoff and a 1,000,000-token context window. The models are priced slightly above the GPT-5.2 family, with higher rates when usage exceeds 272,000 tokens. OpenAI reports GPT-5.4 scores 87.3% on spreadsheet modeling versus 68.4% for GPT-5.2.
Scoring Rationale
Significant official model release with million-token context; strong internal benchmarks, limited independent evaluations.
