DeepSeek V4 Flash 0731 vs LFM3-1.7B
Price, context window & benchmark comparison
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Verdict: DeepSeek V4 Flash 0731 is 2% cheaper than LFM3-1.7B on a typical 3:1 input/output mix. DeepSeek V4 Flash 0731 has the larger context window (1M vs 262K).
| DeepSeek V4 Flash 0731 | LFM3-1.7B | |
|---|---|---|
| Input price / 1M | $0.0434 | $0.08 |
| Output price / 1M | $0.30 | $0.20 |
| Blended price (3:1) | $0.11 | $0.11 |
| Cached input / 1M | $0.035 | $0.02 |
| Context window | 1M | 262K |
| Max output | 944K | 8K |
| Intelligence index | — | — |
| Coding index | 69.1 | — |
| Providers | 27 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-07-31 | 2026-11-06 |
| Retirement | — | — |
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FAQ
Which is cheaper, DeepSeek V4 Flash 0731 or LFM3-1.7B?
DeepSeek V4 Flash 0731 is 2% cheaper than LFM3-1.7B on a typical 3:1 input/output mix.
DeepSeek V4 Flash 0731 vs LFM3-1.7B: which has a bigger context window?
DeepSeek V4 Flash 0731: 1,048,576 tokens. LFM3-1.7B: 262,144 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: DeepSeek V4 Flash 0731 ≈ $236.80, LFM3-1.7B ≈ $260.00.
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