Best AI API for Data Extraction: Cost Comparison 2026
Data extraction is extremely input-heavy — you're sending large documents and getting small structured responses back. That makes input pricing the dominant cost factor.
Updated April 29, 2026
What Data Extraction APIs Need
Extracting structured data from unstructured text has specific requirements.
Structured Output
The model must reliably output valid JSON, tables, or other structured formats without hallucinating fields.
Large Context Window
Documents can be 10K–100K+ tokens. The model needs enough context to process entire documents in one request.
High Accuracy
Extraction errors cascade. A single wrong field can break downstream processing. Accuracy is non-negotiable.
Low Input Cost
Extraction is 90%+ input tokens. Input pricing matters far more than output pricing for this workload.
Model Comparison for Data Extraction
All costs assume 10,000 input tokens (the document) and 500 output tokens (extracted data) per request, at 500 requests per day (15,000/month). Extraction is heavily input-dominated.
| Model | Provider | Input / 1M | Output / 1M | Monthly Cost | Quality |
|---|---|---|---|---|---|
| Mistral Small 4 | Mistral | $0.10 | $0.30 | $17.25 | Good |
| Gemini 2.0 Flash | $0.10 | $0.40 | $18.00 | Good | |
| Llama 4 Scout | Meta (Together.ai) | $0.11 | $0.34 | $19.05 | Good |
| DeepSeek V4 Flash | DeepSeek | $0.14 | $0.28 | $23.10 | Good |
| GPT-4o mini | OpenAI | $0.15 | $0.60 | $27.00 | Great |
| Llama 3.1 70B | Meta (Together.ai) | $0.88 | $0.88 | $138.60 | Great |
| Claude Haiku 4.5 | Anthropic | $0.80 | $4.00 | $150.00 | Great |
| GPT-4o | OpenAI | $2.50 | $10.00 | $450.00 | Excellent |
| Claude Sonnet 4 | Anthropic | $3.00 | $15.00 | $562.50 | Excellent |
Best Model by Budget
Under $25/month
Ideal for startups and low-volume extraction
- Mistral Small 4 — $17.25/mo. Cheapest option. Works well for simple field extraction.
- GPT-4o mini — $27.00/mo. Best balance. Much better at complex nested JSON extraction.
$100 – $200/month
Ideal for growing extraction pipelines
- Llama 3.1 70B — $138.60/mo. Best value for high-volume extraction with good accuracy.
- Claude Haiku 4.5 — $150.00/mo. Excellent structured output reliability.
$500+/month
Ideal for enterprise extraction with complex documents
- GPT-4o — $450.00/mo. Best for complex multi-field extraction from messy documents.
- Claude Sonnet 4 — $562.50/mo. Best JSON reliability of any model. Fewer parsing errors.
GPT-4o mini
For most data extraction workloads, GPT-4o mini delivers the best cost-to-accuracy ratio. At $27/month for 500 extractions/day, it handles invoices, emails, resumes, and web pages with reliable structured output. Only upgrade to GPT-4o for complex nested schemas or messy OCR'd documents.
Try GPT-4o mini in the CalculatorCalculate Your Exact Cost
Data extraction costs depend heavily on document size. Enter your actual token counts for a precise estimate.
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