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GPT-5.4 Pricing
OpenAI · gpt-5-4
Input / 1M tokens
$2.50
Output / 1M tokens
$15.00
Context window
1050k tokens
≈ 1,400 pages of text
Max output
128k tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.009
1,000 requests / month$9.00/mo10,000 requests / month$90.00/mo100,000 requests / month$900.00/moEstimate your own workloadOpens the calculator with GPT-5.4 preloaded — adjust volume and token counts there.
Price history
Only one price point recorded so far.
The staircase chart appears once a price change is detected.
What it excels at
Excellent general-purpose reasoning and broad world knowledge, with strong performance on coding, math, and multi-modal (image + file) inputs.
The business tradeoff
Output tokens are priced well above input tokens, so verbose responses dominate cost — tight max-token limits and prompt caching matter.
Cheaper from OpenAI
Head-to-head
Vendor list rates, as of Jun 15, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.