DeepSeek V4 Flash 0423 vs DeepSeek V4 Flash 0731
Pick up to 3 models · pricing, context and capabilities · simulate your product cost
Data updated on September 30, 2026· 217 models
DeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window.
- Reasoning estimated
- Speed estimated
- Input
- Output
- Context
- 1 M tokens
- Max output
- 131 K
- Input, $ per 1M tokens
- $0.140
- Output, $ per 1M tokens
- ▲$0.280
- Cache read, $ per 1M
- $0.028
- Batch (input / output)
- —
- Tool calling
- Yes
- Released
- 04/24/2026
- Knowledge cutoff
- 2025-05
- API id
- deepseek/deepseek-v4-flash
DeepSeek V4 Flash 0731 is a sparse mixture-of-experts model from DeepSeek, with 13B active parameters out of 284B total.
- Reasoning estimated
- Speed estimated
- Input
- Output
- Context
- 1 M tokens
- Max output
- ▲944 K
- Input, $ per 1M tokens
- ▲$0.018
- Output, $ per 1M tokens
- $0.320
- Cache read, $ per 1M
- $0.018
- Batch (input / output)
- —
- Tool calling
- Yes
- Released
- ▲07/31/2026
- Knowledge cutoff
- 2025-05
- API id
- deepseek/deepseek-v4-flash-0731
Which is the better API choice: DeepSeek V4 Flash 0423 vs DeepSeek V4 Flash 0731?
- DeepSeek V4 Flash 0731: cheapest input (87% less than DeepSeek V4 Flash 0423)
- DeepSeek V4 Flash 0423: cheapest output
- DeepSeek V4 Flash 0731: the newest (07/31/2026)
Pricing is split: DeepSeek V4 Flash 0731 wins on input and DeepSeek V4 Flash 0423 wins on output. All accept 1 M tokens of context.
What would your product cost?
Estimate the monthly cost with your app's real volume. List prices, no cache or batch discounts.
With DeepSeek V4 Flash 0731 you save $1.67 a month versus DeepSeek V4 Flash 0423 (52% less).
The 6 cheapest for this scenario (chat, last 12 months)
- 1Lyria 3 Pro Preview Google$0.00
- 2Lyria 3 Clip Preview Google$0.00
- 3Qwen3.7 Flash Qwen$0.97
- 4DeepSeek V4 Flash 0731 DeepSeek$1.55
- 5Ministral 3 3B 2512 Mistral$1.90
- 6Qwen3.5-Flash Qwen$2.02
Paste your prompt: tokens and cost per model
Rough estimate (about 4 characters per token). Nothing is sent to any server.
Cost of sending it 1,000 times (input only)
- 1DeepSeek V4 Flash 0731 DeepSeek$0.001
- 2DeepSeek V4 Flash 0423 DeepSeek$0.011
- 3Claude Sonnet 5.5 Anthropic$0.152
- 4Claude Sonnet 5 Anthropic$0.152
- 5Claude Opus 5.5 Anthropic$0.304
- 6Claude Opus 5 Anthropic$0.380
- 7Claude Fable 5.1 Anthropic$0.760
- 8Claude Fable 5 Anthropic$0.760
Popular comparisons
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- Claude Sonnet 5.5 vs DeepSeek V4.1 Flash
- Claude Sonnet 5.5 vs Grok 4.7
- GPT-6.1 Sol vs Gemini 3.8 Flash
- GPT-6.1 Sol vs DeepSeek V4.1 Flash
- GPT-6.1 Sol vs Grok 4.7
- Gemini 3.8 Flash vs DeepSeek V4.1 Flash
- Gemini 3.8 Flash vs Grok 4.7
- DeepSeek V4.1 Flash vs Grok 4.7
Frequently asked questions
Which is the better API choice: DeepSeek V4 Flash 0423 vs DeepSeek V4 Flash 0731?
Pricing is split: DeepSeek V4 Flash 0731 wins on input and DeepSeek V4 Flash 0423 wins on output. All accept 1 M tokens of context.
Which is cheaper: DeepSeek V4 Flash 0423 and DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 is cheaper: $0.018 per million input tokens and $0.320 per million output tokens, versus $0.140 / $0.280 for DeepSeek V4 Flash 0423.
Which has more context: DeepSeek V4 Flash 0423 and DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0423 and DeepSeek V4 Flash 0731 accept the same context: 1 M tokens.
Which is newer: DeepSeek V4 Flash 0423 and DeepSeek V4 Flash 0731?
DeepSeek V4 Flash 0731 was released on 07/31/2026; DeepSeek V4 Flash 0423 on 04/24/2026.
What would 10,000 requests a month cost with DeepSeek V4 Flash 0423 and DeepSeek V4 Flash 0731?
With 1,500 input and 400 output tokens per request: DeepSeek V4 Flash 0423: $3.22; DeepSeek V4 Flash 0731: $1.55 a month, at list price.
Where do the prices come from and how often are they updated?
From the public catalogs of OpenRouter, models.dev and LiteLLM, which publish each provider's list prices. They sync once a day and the last update date is shown above the comparison.
What does price per million tokens mean?
It is what the provider charges per million tokens you send (input) or the model generates (output). A token is roughly 4 characters. Output almost always costs more than input.
Sources: OpenRouter, models.dev and LiteLLM. Prices in USD per million tokens, list price, no volume discounts. Prompt tokens are an estimate; each provider's tokenizer may differ.