DeepSeek V4 Pro vs GPT-6.1 Sol API pricing
DeepSeek V4 Pro is cheaper on every example workload below. Prices last checked 2026-10-13.
| DeepSeek V4 Pro (DeepSeek) | GPT-6.1 Sol (OpenAI) | |
|---|---|---|
| Input $/1M tokens | $1.32 | $2.0 |
| Output $/1M tokens | $3.96 | $10.0 |
| Context | 1000000 | — |
| Our tier (1–4) | 3 | 3 |
Example monthly bills
| Workload | DeepSeek V4 Pro | GPT-6.1 Sol | Cheaper |
|---|---|---|---|
| Chat / Q&A 10M in / 2M out per month | $21.12 | $40.00 | DeepSeek V4 Pro saves $18.88/mo (47%) |
| Coding 20M in / 5M out per month | $46.20 | $90.00 | DeepSeek V4 Pro saves $43.80/mo (49%) |
| Output-heavy (reasoning, long answers) 10M in / 10M out per month | $52.80 | $120.00 | DeepSeek V4 Pro saves $67.20/mo (56%) |
Fine print
- DeepSeek V4 Pro: Peak rate; off-peak half
- GPT-6.1 Sol: ≤272K input; long context $4/$15
Cost only, not quality. “Tier” is our rough capability judgment, not a benchmark, and different tokenizers count the same text differently. Reasoning models may bill extra thinking tokens as output. Official sources: DeepSeek, OpenAI.
See all models on the full price table, the DeepSeek and OpenAI pricing pages, or try the savings calculator with your own numbers.