DeepSeek V4.1 Flash model for reasoning and agentic coding
Specification
deepseek listing
Context
1M
Max output
384K
Released
2026-09-10
Knowledge cutoff
2025-05
Retires
—
Open weights
no
Input
text, image
Output
text
Price
US dollars per million tokens · deepseek list price
Input
$0.15
Output
$0.60
Cache read
$0.003
Cache write
free
Available from 5 hosts
| Host | In $/M | Out $/M | Cache rd | Cache wr | Context | Output | Retires |
|---|---|---|---|---|---|---|---|
| deepseekvendor | $0.15 $0.30 | $0.60 $1.20 | $0.003 $0.006 | free | 1M | 384K 393K | — |
| 302ai | $0.15 | $0.60 | $0.003 | — | 1M | 384K | — |
| kilo | $0.15 | $0.60 | $0.015 | — | 1M | 944K | — |
| openrouter | $0.15 | $0.60 | $0.015 | — | 1M | 944K | — |
| vancine | $0.24 | $0.96 | $0.0048 | — | 1M | 384K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-11 | deepseek | Cache read | $0.003 |
| 2026-09-13 | deepseek | Cache read | $0.003 |
| 2026-09-11 | deepseek | Input | $0.15 |
| 2026-09-13 | deepseek | Input | $0.15 |
| 2026-09-11 | deepseek | Output | $0.60 |
| 2026-09-13 | deepseek | Output | $0.60 |
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