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
Quality
1 benchmark · 1 source
Composite
80th
percentile of 334 scored models
Rank
69 / 334
±0.53 sd
Evidence
1 × 1
too little evidence to place with confidence
Effort range
—
one configuration only
general66th1/1 bench
Every score
one row per source and configuration — nothing averaged away
| Benchmark | Score | Configuration | Source | Run |
|---|---|---|---|---|
| LiveBench | 77.7 | default · 23 runs | LiveBench | 2026-06-25 |
The leading figure for a benchmark is the median across its configurations, so one heroic high-effort run cannot set the number.
Available from 19 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 | — |
| crof | $0.08 | $0.20 | $0.007 | — | 1M | 131K | — |
| amd | $0.14 | $0.28 | $0.0028 | — | 1M | 384K | — |
| opencode | $0.14 | $0.28 | $0.028 | — | 1M | 384K | — |
| orcarouter | $0.147 | $0.295 | $0.02 | — | 1M | 384K | — |
| opencode-go | $0.15 | $0.60 | $0.003 | — | 1M | 384K | — |
| edenai | $0.22 | $0.66 | $0.007 | — | 1M | 384K | — |
| fireworks_ai | $0.22 | $0.66 | $0.007 | — | 1M | — | — |
| fireworks-ai · accounts | $0.22 | $0.66 | $0.007 | — | 1M | 384K | — |
| openrouter | $0.22 | $0.66 | $0.007 | — | 1M | 944K 384K | — |
| vercel | $0.22 | $0.66 | $0.007 | — | 1M | 1M | — |
| above | $0.242 | $0.726 | $0.0077 | — | 1M | 384K | — |
| crossmodel | $0.27 | $1.08 | $0.0054 | $0.27 | 1M | 384K | — |
| deepinfra · deepseek-ai | $0.44 | $1.32 | $0.014 | — | 1M | 384K | — |
| huggingface · deepseek-ai | $0.44 | $1.32 | — | — | 1M | 384K | — |
| kilo | $0.44 | $1.32 | $0.028 | — | 1M | 944K | — |
| nano-gpt | $0.44 | $1.32 | $0.014 | — | 1M | 384K | — |
| novita | $0.44 | $1.32 | $0.028 | — | 1M | 393K | — |
| ofox | $0.44 | $1.32 | $0.014 | — | 1M | 384K | — |
Price history
append-only observations · a listing writes a row only when its price moves
| Date | Host | Field | $/M |
|---|---|---|---|
| 2026-09-02 | crossmodel | Cache read | $0.0135 |
| 2026-09-11 | crossmodel | Cache read | $0.0054 |
| 2026-09-02 | deepseek | Cache read | $0.0028 |
| 2026-09-11 | deepseek | Cache read | $0.003 |
| 2026-09-13 | deepseek | Cache read | $0.003 |
| 2026-09-02 | nano-gpt | Cache read | $0.007 |
| 2026-09-02 | nano-gpt | Cache read | $0.014 |
| 2026-09-02 | nano-gpt | Cache read | $0.007 |
| 2026-09-03 | nano-gpt | Cache read | $0.014 |
| 2026-09-05 | nano-gpt | Cache read | $0.007 |
| 2026-09-07 | nano-gpt | Cache read | $0.014 |
| 2026-09-12 | nano-gpt | Cache read | $0.007 |
| 2026-09-15 | nano-gpt | Cache read | $0.014 |
| 2026-09-02 | opencode-go | Cache read | $0.007 |
| 2026-09-11 | opencode-go | Cache read | $0.003 |
| 2026-09-02 | openrouter | Cache read | $0.007 |
| 2026-09-02 | openrouter | Cache read | $0.014 |
| 2026-09-02 | openrouter | Cache read | $0.007 |
| 2026-09-03 | openrouter | Cache read | $0.014 |
| 2026-09-05 | openrouter | Cache read | $0.007 |
| 2026-09-06 | openrouter | Cache read | $0.007 |
| 2026-09-07 | openrouter | Cache read | $0.014 |
| 2026-09-09 | openrouter | Cache read | $0.007 |
| 2026-09-02 | crossmodel | Cache write | $0.405 |
| 2026-09-11 | crossmodel | Cache write | $0.27 |
| 2026-09-02 | crossmodel | Input | $0.405 |
| 2026-09-11 | crossmodel | Input | $0.27 |
| 2026-09-02 | deepseek | Input | $0.14 |
| 2026-09-11 | deepseek | Input | $0.15 |
| 2026-09-13 | deepseek | Input | $0.15 |
| 2026-09-02 | nano-gpt | Input | $0.22 |
| 2026-09-02 | nano-gpt | Input | $0.44 |
| 2026-09-02 | nano-gpt | Input | $0.22 |
| 2026-09-03 | nano-gpt | Input | $0.44 |
| 2026-09-05 | nano-gpt | Input | $0.22 |
| 2026-09-07 | nano-gpt | Input | $0.44 |
| 2026-09-12 | nano-gpt | Input | $0.22 |
| 2026-09-15 | nano-gpt | Input | $0.44 |
| 2026-09-02 | opencode-go | Input | $0.22 |
| 2026-09-11 | opencode-go | Input | $0.15 |
| 2026-09-02 | openrouter | Input | $0.22 |
| 2026-09-02 | openrouter | Input | $0.44 |
| 2026-09-02 | openrouter | Input | $0.22 |
| 2026-09-03 | openrouter | Input | $0.44 |
| 2026-09-05 | openrouter | Input | $0.22 |
| 2026-09-06 | openrouter | Input | $0.22 |
| 2026-09-07 | openrouter | Input | $0.44 |
| 2026-09-09 | openrouter | Input | $0.22 |
| 2026-09-02 | crossmodel | Output | $1.215 |
| 2026-09-11 | crossmodel | Output | $1.08 |
| 2026-09-02 | deepseek | Output | $0.28 |
| 2026-09-11 | deepseek | Output | $0.60 |
| 2026-09-13 | deepseek | Output | $0.60 |
| 2026-09-02 | nano-gpt | Output | $0.66 |
| 2026-09-02 | nano-gpt | Output | $1.32 |
| 2026-09-02 | nano-gpt | Output | $0.66 |
| 2026-09-03 | nano-gpt | Output | $1.32 |
| 2026-09-05 | nano-gpt | Output | $0.66 |
| 2026-09-07 | nano-gpt | Output | $1.32 |
| 2026-09-12 | nano-gpt | Output | $0.66 |
| 2026-09-15 | nano-gpt | Output | $1.32 |
| 2026-09-02 | opencode-go | Output | $0.66 |
| 2026-09-11 | opencode-go | Output | $0.60 |
| 2026-09-02 | openrouter | Output | $0.66 |
| 2026-09-02 | openrouter | Output | $1.32 |
| 2026-09-02 | openrouter | Output | $0.66 |
| 2026-09-03 | openrouter | Output | $1.32 |
| 2026-09-05 | openrouter | Output | $0.66 |
| 2026-09-06 | openrouter | Output | $0.66 |
| 2026-09-07 | openrouter | Output | $1.32 |
| 2026-09-09 | openrouter | Output | $0.66 |
| 2026-09-04 | deepinfra · deepseek-ai | Cache read | $0.14 |
| 2026-09-10 | deepinfra · deepseek-ai | Cache read | $0.014 |
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