# DeepSeek R1 0528 NVFP4 vs Claude Sonnet 5

On provider list prices, DeepSeek R1 0528 NVFP4 costs $3 per million input tokens against $3 for Claude Sonnet 5: effectively level. Output is $7 against $15 (2.1x). On Allocate both bill at list plus the 7% transaction fee.

## Specifications

| | DeepSeek R1 0528 NVFP4 | Claude Sonnet 5 |
| --- | --- | --- |
| Lab | Deepseek | Anthropic |
| Access | Open weights | API only |
| Context window | 160K tokens | 1M tokens |
| List price, input | $3 / M tokens | $3 / M tokens |
| List price, output | $7 / M tokens | $15 / M tokens |
| Cached input | n/a | n/a |
| License | MIT | Proprietary API |
| Fine-tunable | Yes | No |

Specifications and provider list prices from the Allocate catalog, checked 2026-07-08. Billed price is list plus the 7% transaction fee.

## What the numbers say

Take 1,000,000 requests a month at 1,200 input and 350 output tokens each. That workload costs $6,050 a month on DeepSeek R1 0528 NVFP4 and $8,850 on Claude Sonnet 5 at list: a gap of $2,800, or 1.5x.

Claude Sonnet 5 reads 1M tokens per request against 160K for DeepSeek R1 0528 NVFP4, 6.1x the window. That decides which one can take whole documents without splitting them.

## Choose DeepSeek R1 0528 NVFP4 for

- Open weights you can fine-tune and own
- Fine-tuning under a permissive license (MIT)

## Choose Claude Sonnet 5 for

- Judgment calls with policy context
- Customer-facing writing
- Review and escalation flows

## Common questions

### Which is cheaper, DeepSeek R1 0528 NVFP4 or Claude Sonnet 5?

DeepSeek R1 0528 NVFP4, on this workload shape. At list prices it is $3/$7 per million tokens in and out against $3/$15 for Claude Sonnet 5. Billed on Allocate: $3.21/$7.49 against $3.21/$16.05, list plus 7%.

### Which has the bigger context window?

Claude Sonnet 5: 1,000,000 tokens (1M) against 163,840 (160K) for DeepSeek R1 0528 NVFP4.

### Can I fine-tune DeepSeek R1 0528 NVFP4 or Claude Sonnet 5?

DeepSeek R1 0528 NVFP4 publishes open weights (MIT) and can be fine-tuned on your own data. Claude Sonnet 5 is a closed model served over API; its weights are not available.

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[HTML page](https://allocate.network/compare/deepseek-deepseek-r1-0528-vs-sonnet-5) · [DeepSeek R1 0528 NVFP4](https://allocate.network/models/deepseek-deepseek-r1-0528.md) · [Claude Sonnet 5](https://allocate.network/models/sonnet-5.md) · [Machine-readable catalog](https://allocate.network/catalog.json)