DeepSeek V4 Flash vs DeepSeek V4 Pro — Price, Context, and Capability Compared
Verdict
DeepSeek V4 Pro costs 3.1× more per blended million tokens than DeepSeek V4 Flash. DeepSeek V4 Flash has the larger context window (128,000 tokens). Default to DeepSeek V4 Flash unless you specifically need DeepSeek V4 Pro's edge. Only DeepSeek V4 Pro exposes an extended-thinking mode.
Spec comparison
| DeepSeek V4 Flash | DeepSeek V4 Pro | |
|---|---|---|
| Price (input) | $0.14/M ✓ | $0.43/M |
| Price (output) | $0.28/M ✓ | $0.87/M |
| Blended price | $0.17/M ✓ | $0.54/M |
| Context window | 128,000 tokens | 128,000 tokens |
| Max output | 32,000 tokens | 64,000 tokens ✓ |
| Modalities | text | text |
| Reasoning mode | No | Yes |
| Released | 2026-05 | 2026-05 |
| Speed | 132 t/s ✓ | 68 t/s |
Cost at scale (3:1 blended)
| Tokens / month | DeepSeek V4 Flash | DeepSeek V4 Pro | Delta |
|---|---|---|---|
| 1,000,000 | $0.17 | $0.54 | $0.37 (3.1×) |
| 10,000,000 | $1.75 | $5.44 | $3.69 (3.1×) |
| 100,000,000 | $17.50 | $54.37 | $36.87 (3.1×) |
Choose DeepSeek V4 Flash if…
- ✓Latest DeepSeek flagship, non-thinking mode
- ✓Aggressively cheap per-token pricing
- ✓Strong algorithmic coding
- ✓High-volume coding and text workloads where budget is the top priority.
Choose DeepSeek V4 Pro if…
- ✓Thinking mode with visible chain-of-thought
- ✓Frontier-level math and competition coding
- ✓Still far cheaper than closed frontier models
- ✓Rigorous math, proofs, and hard algorithmic problems on a budget.
Run this exact matchup right now
Send the same prompt to DeepSeek V4 Flash and DeepSeek V4 Pro side by side and see the outputs yourself.
Try DeepSeek V4 Flash vs DeepSeek V4 Pro FreeFAQ
Is DeepSeek V4 Flash cheaper than DeepSeek V4 Pro?
DeepSeek V4 Flash is cheaper, at $0.17 per million blended tokens vs $0.54 for DeepSeek V4 Pro.
Which has the bigger context window, DeepSeek V4 Flash or DeepSeek V4 Pro?
Both models support 128,000 tokens of context.
Can DeepSeek V4 Flash replace DeepSeek V4 Pro for coding?
Both are viable for coding. Latest DeepSeek flagship, non-thinking mode (DeepSeek V4 Flash) vs Thinking mode with visible chain-of-thought (DeepSeek V4 Pro) — pick based on which strength matters more for your workload.
Which is faster, DeepSeek V4 Flash or DeepSeek V4 Pro?
DeepSeek V4 Flash is faster: 132 t/s vs 68 t/s, measured on our speed benchmarks.
Related
Pricing verified 2026-06-14. Specs verified 2026-08-08.
