DeepSeek V4 Flash 0731 vs LFM2.5-2.6B
Price, context window & benchmark comparison
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Verdict: DeepSeek V4 Flash 0731 is 2.6× cheaper than LFM2.5-2.6B on a typical 3:1 input/output mix. DeepSeek V4 Flash 0731 has the larger context window (1M vs 128K).
| DeepSeek V4 Flash 0731 | LFM2.5-2.6B | |
|---|---|---|
| Input price / 1M | $0.12 | $0.35 |
| Output price / 1M | $0.24 | $0.50 |
| Blended price (3:1) | $0.15 | $0.39 |
| Cached input / 1M | $0.0238 | $0.04 |
| Context window | 1M | 128K |
| Max output | 944K | 8K |
| Intelligence index | — | — |
| Coding index | 69.1 | 7.7 |
| Providers | 26 | — |
| Best provider uptime (30m) | 100.0% | — |
| Vision input | No | No |
| Reasoning | Yes | Yes |
| Tool calling | Yes | Yes |
| Released | 2026-07-31 | 2026-08-11 |
| Retirement | — | — |
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FAQ
Which is cheaper, DeepSeek V4 Flash 0731 or LFM2.5-2.6B?
DeepSeek V4 Flash 0731 is 2.6× cheaper than LFM2.5-2.6B on a typical 3:1 input/output mix.
DeepSeek V4 Flash 0731 vs LFM2.5-2.6B: which has a bigger context window?
DeepSeek V4 Flash 0731: 1,048,576 tokens. LFM2.5-2.6B: 128,000 tokens.
How much would 1 million requests cost?
At 2,000 input + 500 output tokens per request: DeepSeek V4 Flash 0731 ≈ $357.00, LFM2.5-2.6B ≈ $950.00.
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