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Flash — fastest and cheapest, lighter reasoningCommercial API
GPT-5 Nano (batch) Pricing
OpenAI · openai-gpt-5-nano-batch
Input / 1M tokens
$0.025
Output / 1M tokens
$0.200
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)$0.0001
1,000 requests / month$0.11/mo10,000 requests / month$1.10/mo100,000 requests / month$11.00/moEstimate your own workloadOpens the calculator with GPT-5 Nano (batch) 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
Handles large-context batch workloads at low cost with extended input and output limits.
The business tradeoff
Reduced reasoning depth and capability compared to larger GPT variants; limited to batch-oriented use cases.
Cheaper from OpenAI
Head-to-head
Vendor list rates, as of Jul 22, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.