Comparison · 2026-05-12
DeepSeek-R1 vs GPT-5
Side-by-side comparison of pricing, context window and capabilities for DeepSeek-R1 (DeepSeek) and GPT-5 (OpenAI). Focus: agents.
| DeepSeek-R1 | GPT-5 | |
|---|---|---|
| Vendor | DeepSeek | OpenAI |
| Input price / 1M tokens | $0.400 | $1.25 |
| Output price / 1M tokens | $1.70 | $10.00 |
| Total per 1M (in + out) | $2.10 | $11.25 |
| Context window | 128K | 400K |
| Max output tokens | 33K | 128K |
| Tool calling | ✓ Yes | ✓ Yes |
| Structured output | Unknown | ✓ Yes |
| Reasoning | ✓ Yes | ✓ Yes |
| Vision input | ✗ No | ✓ Yes |
| Open weights | ✗ No | ✗ No |
| Provider availability | 18 providers | 20 providers |
| Release date | 2025-01-20 | 2025-08-07 |
| Knowledge cutoff | 2024-07 | 2024-09-30 |
Quick takeaway
- DeepSeek-R1 is 5.4× cheaper per 1M tokens (input + output combined).
- GPT-5 has a larger context window (400K vs 128K).
- Only GPT-5 supports structured output / JSON mode.
- GPT-5 is more widely available across providers (20 vs 18).
Last updated:
Prices in USD per 1M tokens. Unknown means the provider does not publish per-token pricing.
Data is sourced from models.dev and normalized for comparison. Prices and capabilities may change. Always verify critical production decisions with the provider's official documentation.