DeepSeek V4 Flash 0423 vs DeepSeek V4 Flash 0731
Price, context window & benchmark comparison
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Verdict: DeepSeek V4 Flash 0731 is 7% cheaper than DeepSeek V4 Flash 0423 on a typical 3:1 input/output mix. DeepSeek V4 Flash 0731 scores higher on the Artificial Analysis Intelligence Index (34.3 vs 24.2). DeepSeek V4 Flash 0731 has the larger context window (1.3M vs 1M).
| DeepSeek V4 Flash 0423 | DeepSeek V4 Flash 0731 | |
|---|---|---|
| Input price / 1M | $0.0886 | $0.03 |
| Output price / 1M | $0.18 | $0.32 |
| Blended price (3:1) | $0.11 | $0.10 |
| Cached input / 1M | $0.0177 | $0.016 |
| Context window | 1M | 1.3M |
| Max output | 384K | 944K |
| Intelligence index | 24.2 | 34.3 |
| Coding index | 56.2 | 69.1 |
| Providers | — | 30 |
| Best provider uptime (30m) | — | 100.0% |
| Vision input | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-04-24 | 2026-07-31 |
| Retirement | — | — |
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FAQ
Which is cheaper, DeepSeek V4 Flash 0423 or DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is 7% cheaper than DeepSeek V4 Flash 0423 on a typical 3:1 input/output mix.
DeepSeek V4 Flash 0423 vs DeepSeek V4 Flash 0731: which has a bigger context window?
DeepSeek V4 Flash 0423: 1,048,576 tokens. DeepSeek V4 Flash 0731: 1,310,720 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: DeepSeek V4 Flash 0423 ≈ $265.80, DeepSeek V4 Flash 0731 ≈ $220.00.
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