GPT-4o
$1,437.50 / month- Input cost
- $1,187.50
- Output cost
- $250.00
- Per 1,000 calls
- $143.75
- Pricing profile
- standard
Source-tracked model comparison
How do GPT-4o and Gemini 2.5 Pro costs compare for document workloads?
Compare verified pricing and model limits for multimodal and document-oriented applications. The cost example uses a document summarization workload and does not assume equal model quality.
Direct cost answer: GPT-4o is estimated at $1,437.50 per month and Gemini 2.5 Pro at $818.75 for 50,000 input tokens, 2,500 output tokens, and 10,000 monthly requests. Gemini 2.5 Pro is $618.75 lower under these assumptions. This does not identify a quality winner.
Tracked facts
Pricing and model limits
Prices are USD per 1M tokens under each model's verified default profile.
| Field | GPT-4o | Gemini 2.5 Pro |
|---|---|---|
| Provider | OpenAI | |
| API model ID | gpt-4o | gemini-2.5-pro |
| Input / 1M | $2.50 | $1.25 |
| Cached input / 1M | $1.25 | $0.125 |
| Output / 1M | $10.00 | $10.00 |
| Context window | 128,000 tokens | 1,048,576 tokens |
| Maximum output | 16,384 tokens | 65,536 tokens |
| Accepted input | text, image | text, image, video, audio, pdf |
Example workload
Document summarization cost scenario
50,000 input and 2,500 output tokens per request, 10,000 monthly requests, and 10% cached input.
Gemini 2.5 Pro
$818.75 / month- Input cost
- $568.75
- Output cost
- $250.00
- Per 1,000 calls
- $81.88
- Pricing profile
- standard / short context
Cost result: Gemini 2.5 Pro is $618.75 lower per month for these assumptions. This is a price comparison, not a model-quality ranking.
Questions to answer before choosing
- Which input modalities are required by the product?
- Does the workload need the full tracked context window?
- How do output length and thinking-token rules affect cost?
What this estimate leaves out
OCR, file ingestion, multimodal document processing, and multi-pass summarization are not included.
Latency, reliability, output quality, retries, regional processing, and provider-specific tool charges can change the practical decision.
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