A standard 50 pages document (~25,000 words / 32,000 tokens) costs $0.32 to ingest and $0.34 to generate a comprehensive executive summary using o3 (Reasoning Frontier).
Feed the entire 50 pages document into context to extract fields, entities, or answer queries.
Ingest 50 pages and generate a structured 500-token executive summary with key takeaways.
Translate or reformat the entire 50 pages document into an equivalent length output.
| Model | Provider | Ingestion (50 pages) | Cached Ingestion | Summary Cost | Context Limit |
|---|---|---|---|---|---|
| o3 (Reasoning Frontier) (Current) | openai | $0.32 | $0.032 | $0.34 | 1,050,000 |
| GPT-5.6 Sol | openai | $0.16 | $0.016 | $0.175 | 1,050,000 |
| GPT-5.6 Cyber | openai | $0.40 | $0.04 | $0.4375 | 1,050,000 |
| GPT-5.5 Standard | openai | $0.16 | $0.016 | $0.175 | 512,000 |
| GPT-5.5 Pro | openai | $0.96 | $0.096 | $1.05 | 512,000 |
| o3-pro (Frontier Reasoning) | openai | $0.64 | $0.064 | $0.68 | 1,000,000 |
Assuming a standard single-spaced document with ~500 words per page, a 50 pages document contains approximately 25,000 words, which translates to roughly 32,000 tokens using o3 (Reasoning Frontier)'s tokenizer. Dense PDF tables, legal boilerplate, and OCR scans may increase this by 20–30%.
o3 (Reasoning Frontier) has a context window of 1,050,000 tokens. A 50 pages document consumes only 3.05% of its total window, easily fitting in a single prompt without requiring chunking or vector search.
Ingesting the document and outputting a concise 500-token executive summary costs $0.34. Using 24-hour async batch API queues drops this cost to $0.17.
If your workflow repeatedly queries or chats with this same 50 pages document, prompt caching reduces subsequent turn input costs by up to 90% (to $0.032 per turn instead of $0.32).