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Flagship — best answers, highest costCommercial API
o3 Pro (batch) Pricing
OpenAI · openai-o3-pro-batch
Input / 1M tokens
$10.00
Output / 1M tokens
$40.00
Context window
200k tokens
≈ 267 pages of text
Max output
100k tokens
What it costs in practice
Typical request (1,200 in + 400 out tokens)$0.028
1,000 requests / month$28.00/mo10,000 requests / month$280.00/mo100,000 requests / month$2,800.00/moEstimate your own workloadOpens the calculator with o3 Pro (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
Strong performance on complex multi-step reasoning, coding, and long-context analysis tasks. Batch mode supports large-scale processing with 200k input context.
The business tradeoff
Output pricing at $40 per million tokens is high. Batch API adds substantial latency compared to real-time endpoints.
Cheaper from OpenAI
Head-to-head
Vendor list rates, as of Aug 6, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.