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Flagship — best answers, highest costCommercial API
GPT-6 Luna (batch) Pricing
OpenAI · openai-gpt-6-luna-batch
Input / 1M tokens
$0.050
Output / 1M tokens
$0.250
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)$0.0002
1,000 requests / month$0.16/mo10,000 requests / month$1.60/mo100,000 requests / month$16.00/moEstimate your own workloadOpens the calculator with GPT-6 Luna (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
Processes 1M-token contexts with vision for large-scale document and multimodal analysis. High output capacity supports extended generation tasks.
The business tradeoff
Batch designation implies elevated latency unsuitable for real-time applications. Output token costs remain elevated relative to input despite competitive pricing.
Cheaper from OpenAI
Head-to-head
Vendor list rates, as of Sep 22, 2026 · source: openrouter · per-request examples assume 1,200 input + 400 output tokens.