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Flash — fastest and cheapest, lighter reasoningCommercial API
o3 Mini (batch) Pricing
OpenAI · openai-o3-mini-batch
Input / 1M tokens
$0.550
Output / 1M tokens
$2.20
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)$0.0015
1,000 requests / month$1.54/mo10,000 requests / month$15.40/mo100,000 requests / month$154.00/moEstimate your own workloadOpens the calculator with o3 Mini (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 reasoning workloads in batch mode at low per-token cost. Supports extended output sequences up to 100k tokens.
The business tradeoff
Batch-only access adds latency unsuitable for interactive applications. Output tokens priced four times higher than input.
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.