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GPT-5 vs DeepSeek R1
OpenAI vs DeepSeek — head-to-head specs and pricing.
OpenAI
GPT-5
OpenAI's flagship general-purpose model.
GPT-5 is OpenAI's flagship LLM — strong reasoning, tool use, vision, and JSON mode. Drop-in for anything you'd use GPT-4o for.
DeepSeek
DeepSeek R1
Reasoning model — rivals o1/o3 at 20x lower cost
DeepSeek-R1 is an open reasoning model from DeepSeek. Excels at math, coding, and step-by-step logic. Outputs include visible chain-of-thought. WARNING: Per DeepSeek ToS, prompts may be used for model training and are processed on servers in China. Not recommended for sensitive workloads.
| Spec | GPT-5 | DeepSeek R1 |
|---|---|---|
| Provider | OpenAI | DeepSeek |
| Input cost / 1M tokens | $3.00 | $0.66 |
| Output cost / 1M tokens | $12.00 | $2.63 |
| Context window | 256,000 tokens | 65,536 tokens |
| Max output tokens | 16,000 | 8,192 |
| Streaming support | ✓ | ✓ |
| Tool calling | ✓ | — |
| Vision input | ✓ | — |
| JSON mode | ✓ | ✓ |
| Status | ACTIVE | ACTIVE |
Use both via OneAPIKey — one key, one bill
OneAPIKey aggregates OpenAI, DeepSeek, and 10 more providers behind a single API. Smart Routing automatically picks the best model per request — or you choose explicitly.
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