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Flagship — best answers, highest costCommercial API
GPT-5.6 Sol Pro (batch) Pricing
OpenAI · openai-gpt-5-6-sol-pro-batch
Input / 1M tokens
$2.50
Output / 1M tokens
$15.00
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)$0.009
1,000 requests / month$9.00/mo10,000 requests / month$90.00/mo100,000 requests / month$900.00/moEstimate your own workloadOpens the calculator with GPT-5.6 Sol 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
Handles 1M-token contexts with 128k output for long-document or multi-modal analysis. Strong on complex reasoning tasks requiring sustained coherence across large inputs.
The business tradeoff
Output pricing at $15/M tokens raises costs for generation-heavy use. Batch designation implies higher latency unsuitable for interactive applications.
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.