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★ FeaturedFlash — fastest and cheapest, lighter reasoningCommercial API
GPT-5.4 Nano Pricing
OpenAI · gpt-5-4-nano
Input / 1M tokens
$0.200
Output / 1M tokens
$1.25
Context window
400k tokens
≈ 533 pages of text
Max output
128k tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.0007
1,000 requests / month$0.74/mo10,000 requests / month$7.40/mo100,000 requests / month$74.00/moEstimate your own workloadOpens the calculator with GPT-5.4 Nano 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
Cheapest OpenAI option for high-throughput classification, tagging, and routing — ideal as a first-pass filter before a stronger model.
The business tradeoff
Limited reasoning depth means it should be treated as a triage layer, not a final answer source, for anything business-critical.
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.