name = "GPT-5.4" description = "Agent-ready GPT for coding and computer-use workflows at a lower cost" family = "gpt" release_date = "2026-03-05" last_updated = "2026-03-05" attachment = true reasoning = true reasoning_options = [{ type = "effort", values = ["none", "low", "medium", "high", "xhigh"] }] temperature = true knowledge = "2025-08-31" tool_call = true structured_output = true open_weights = false [cost] input = 2.50 output = 15.00 cache_read = 0.25 [[cost.tiers]] tier = { size = 272_000 } input = 5.00 output = 22.50 cache_read = 0.50 [limit] context = 1_050_000 input = 922_000 output = 128_000 [modalities] input = ["text", "image", "pdf"] output = ["text"] [experimental.modes.fast] cost = { input = 5.00, output = 30.00, cache_read = 0.50 } provider = { body = { service_tier = "priority" } }