DeepSeek R1
legacyDeepSeek · Released Jan 2025
Open-weight reasoning model that stunned the industry at launch. Repriced with V3.2-Exp in September 2025; now routes to V4 Flash thinking mode and is scheduled for deprecation July 2026.
- Strengths
- Landmark open reasoning model that reset industry price expectations.
- Best for
- Reasoning experiments and reference work on open weights.
- Limitations
- Now routes to V4 Flash thinking mode; scheduled for deprecation July 2026.
Input / 1M
$0.28
Output / 1M
$0.42
Cached input / 1M
$0.028
Context window
128K
Price history
Input (solid)Output (dashed)
Price change
- 30d
- in — out —
- 90d
- in — out —
- 1y
- in decreased 49.1% out decreased 80.8%
- Since launch
- in decreased 49.1% out decreased 80.8%
Snapshots
| Effective | Input | Output | Cached in | Note | Source |
|---|---|---|---|---|---|
| 29 Sep 2025 | $0.28 | $0.42 | $0.028 | V3.2-Exp repricing, applied to deepseek-reasoner as well as V3 | api-docs.deepseek.com |
| 20 Jan 2025 | $0.55 | $2.19 | $0.14 | Launch pricing | api-docs.deepseek.com |