DeepSeek V4 Flash 0731 API Pricing
DeepSeek · context window 1.3M · prices updated 2026-09-29
Where DeepSeek V4 Flash 0731 sits on price
At $0.32 per million output tokens, DeepSeek V4 Flash 0731 is a budget tier model — 6.9× cheaper than the median output price of $2.20, which puts it cheaper than 86% and pricier than 14% of the models we track. It sits 2th cheapest of the 15 DeepSeek models we track. Output costs 17.8× more than input here, so anything that makes the model write less — tighter instructions, structured output, lower max_tokens — moves the bill more than trimming the prompt.
What real workloads cost on DeepSeek V4 Flash 0731
These three workloads are the ones teams actually run on a budget-priced model — a $0.32/1M model is not bought for the same job as one ten times the price.
| Workload | Per request | Per month |
|---|---|---|
| High-volume classification — 200K requests/day (400 in / 20 out) Short output, huge volume: the input price dominates the bill. | $0 | $81.60 |
| Small app — 1K requests/day (500 in / 150 out) The baseline most side projects actually run at. | $0.0001 | $1.71 |
| Long-context analysis — 200 runs/day (250K in / 4K out) Only possible on large-context models; input cost is nearly the whole bill. | $0.0058 | $34.68 |
Model your exact traffic in the API cost calculator — it preloads DeepSeek V4 Flash 0731 with caching and batch options.
DeepSeek V4 Flash 0731 price history
DeepSeek last raised DeepSeek V4 Flash 0731's output price on Sep 29, 2026, from $0.021/$0.32 to $0.018/$0.32 per 1M in/out. That is one of 19 repricings in the 58 days we have tracked it — worth knowing before you hard-code today's rate into a budget.
| Date | Input /1M | Output /1M | Output change |
|---|---|---|---|
| Aug 2, 2026 (tracking began) | $0.09 | $0.18 | — |
| Aug 10, 2026 | $0.08 | $0.18 | 0% |
| Aug 14, 2026 | $0.14 | $0.28 | +56% |
| Aug 21, 2026 | $0.08 | $0.18 | -36% |
| Aug 24, 2026 | $0.14 | $0.28 | +56% |
| Aug 26, 2026 | $0.06 | $0.12 | -57% |
| Aug 28, 2026 | $0.05 | $0.1 | -17% |
| Aug 29, 2026 | $0.045 | $0.09 | -10% |
| Aug 30, 2026 | $0.065 | $0.18 | +100% |
| Sep 6, 2026 | $0.05 | $0.1 | -44% |
| Sep 7, 2026 | $0.14 | $0.28 | +180% |
| Sep 8, 2026 | $0.065 | $0.18 | -36% |
| Sep 12, 2026 | $0.04 | $0.08 | -56% |
| Sep 14, 2026 | $0.06 | $0.12 | +50% |
| Sep 19, 2026 | $0.04 | $0.08 | -33% |
| Sep 21, 2026 | $0.04 | $0.16 | +100% |
| Sep 22, 2026 | $0.04 | $0.64 | +300% |
| Sep 24, 2026 | $0.03 | $0.32 | -50% |
| Sep 26, 2026 | $0.021 | $0.32 | 0% |
| Sep 29, 2026 | $0.018 | $0.32 | 0% |
Change-points from our daily price snapshots (tracking since Aug 2, 2026; intraday moves between snapshots are not captured).
DeepSeek V4 Flash 0731 vs Llama 3.3 70B Instruct
The closest-priced alternative from another vendor is Llama 3.3 70B Instruct (Meta) — priced within a rounding error on output, with $0.082 more per million input tokens. When two models land this close on price, the decision is quality on your own workload, not the price sheet: run 50 real requests through both and compare.
See Llama 3.3 70B Instruct pricing →Cheaper alternatives
More DeepSeek models
Frequently asked questions
› How much does the DeepSeek V4 Flash 0731 API cost?
DeepSeek V4 Flash 0731 costs $0.018 per million input tokens and $0.32 per million output tokens, with cached input at $0.018 per million (0% cheaper). That works out to roughly 3,125,000 output tokens per dollar.
› What does the high-volume classification workload cost on DeepSeek V4 Flash 0731?
High-volume classification — 200K requests/day (400 in / 20 out) costs about $0 per request and $81.60 per month on DeepSeek V4 Flash 0731. Short output, huge volume: the input price dominates the bill.
› What does it cost to fill DeepSeek V4 Flash 0731's 1.3M context window?
Sending 1.3M of input in a single request costs $0.0236 at $0.018 per million tokens — before any output. There is no cached-input tier on this model, so every repeat of that context is billed at full price. This is why large context windows are cheap to advertise and expensive to actually use.
› Is DeepSeek V4 Flash 0731 worth the price?
DeepSeek V4 Flash 0731 is in the cheapest end of the market — cheaper than 86% of the models we track. At this price the question is not cost but capability: it is a good fit for classification, extraction, routing and bulk summarisation, and a poor fit for multi-step reasoning where a wrong answer costs more than the tokens saved.