DeepSeek V4 Pro vs Mistral Large 3 — Price, Context, and Capability Compared
DeepSeek V4 Pro vs Mistral Large 3: which should I use?
DeepSeek V4 Pro costs 2.6× more per blended million tokens than Mistral Large 3. DeepSeek V4 Pro has the larger context window (1,000,000 tokens). Default to Mistral Large 3 unless you specifically need DeepSeek V4 Pro's edge. Only DeepSeek V4 Pro exposes an extended-thinking mode.
Price, speed, and task evidence
Task verdict
Best-fit task signals from the published model strengths; this is not a substitute for a controlled benchmark.
| Fact | DeepSeek V4 Pro | Mistral Large 3 |
|---|---|---|
| Best fit | Rigorous math, proofs, and hard algorithmic problems on a budget. | Strong multimodal reasoning and coding at a lower cost than the big-lab flagships. |
| Reasoning mode | Available | Unavailable |
Effective workload cost
Modeled for Coding Agent: 20,000 input + 2,000 output tokens per task, 1 turn. This is a workload model, not a provider quote.
| Fact | DeepSeek V4 Pro | Mistral Large 3 |
|---|---|---|
| Coding Agent / task | $0.03 (modeled) | $0.01 (modeled) (winner) |
| Input / output rate | $1.32 / $3.96 per M | $0.50 / $1.50 per M |
Speed
Only non-estimated benchmark results are shown as measured.
| Fact | DeepSeek V4 Pro | Mistral Large 3 |
|---|---|---|
| Measured throughput | 68 tokens/s (winner) | 61 tokens/s |
| Time to first token | 480 ms | 400 ms |
API compatibility
Provider-level wire-format and SDK facts; model-specific parameter differences may still apply.
| Fact | DeepSeek V4 Pro | Mistral Large 3 |
|---|---|---|
| OpenAI SDK | Usable | Usable |
| Request shape | OpenAI-compatible chat/completions; set model to a deepseek-* id and point base_url at api.deepseek.com. | OpenAI-compatible chat/completions endpoint at api.mistral.ai/v1. |
| Streaming | SSE (OpenAI delta) | SSE (OpenAI delta) |
Privacy and retention
Provider policy and residency facts from the verified provider registry. A missing retention policy is not treated as a guarantee.
| Fact | DeepSeek V4 Pro | Mistral Large 3 |
|---|---|---|
| Provider says API data trains models | Unavailable | No |
| Published retention period | Unavailable | Unavailable |
| Data residency | Unavailable | EU-hosted by default |
Migration effort
Direction is from each displayed model to the other. Effort is derived from provider compatibility and published parameter maps.
| Fact | DeepSeek V4 Pro | Mistral Large 3 |
|---|---|---|
| Move DeepSeek V4 Pro → Mistral Large 3 | config; 0 breaking parameter differences | Target: Mistral Large 3 |
| Move Mistral Large 3 → DeepSeek V4 Pro | Source: Mistral Large 3 | config; 3 breaking parameter differences |
| Why | Keep the `openai` SDK; change `baseURL` and the API key. | Keep the `openai` SDK; change `baseURL` and the API key. |
Spec comparison
| DeepSeek V4 Pro | Mistral Large 3 | |
|---|---|---|
| Price (input) | $1.32/M | $0.50/M ✓ |
| Price (output) | $3.96/M | $1.50/M ✓ |
| Blended price | $1.98/M | $0.75/M ✓ |
| Context window | 1,000,000 tokens ✓ | 256,000 tokens |
| Max output | 384,000 tokens ✓ | 32,768 tokens |
| Modalities | text | text, vision |
| Reasoning mode | Yes | No |
| Released | 2026-05 | 2025-12 |
| Speed | 68 t/s ✓ | 61 t/s |
Cost at scale (3:1 blended)
| Tokens / month | DeepSeek V4 Pro | Mistral Large 3 | Delta |
|---|---|---|---|
| 1,000,000 | $1.98 | $0.75 | $1.23 (2.6×) |
| 10,000,000 | $19.80 | $7.50 | $12.30 (2.6×) |
| 100,000,000 | $198.00 | $75.00 | $123.00 (2.6×) |
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.
Choose Mistral Large 3 if…
- ✓Mistral’s open-weight multimodal flagship
- ✓Low price relative to other frontier models
- ✓EU-hosted option available
- ✓Strong multimodal reasoning and coding at a lower cost than the big-lab flagships.
Run this exact matchup right now
Send the same prompt to DeepSeek V4 Pro and Mistral Large 3 side by side and see the outputs yourself.
Try DeepSeek V4 Pro vs Mistral Large 3 FreeFAQ
Is DeepSeek V4 Pro cheaper than Mistral Large 3?
Mistral Large 3 is cheaper, at $0.75 per million blended tokens vs $1.98 for DeepSeek V4 Pro.
Which has the bigger context window, DeepSeek V4 Pro or Mistral Large 3?
DeepSeek V4 Pro has the larger context window: 1,000,000 tokens vs 256,000.
Can DeepSeek V4 Pro replace Mistral Large 3 for coding?
Both are viable for coding. Thinking mode with visible chain-of-thought (DeepSeek V4 Pro) vs Mistral’s open-weight multimodal flagship (Mistral Large 3) — pick based on which strength matters more for your workload.
Which is faster, DeepSeek V4 Pro or Mistral Large 3?
DeepSeek V4 Pro is faster: 68 t/s vs 61 t/s, measured on our speed benchmarks.
Neither of these? See DeepSeek V4 Pro alternatives.
Related
Pricing verified 2026-08-14. Specs verified 2026-08-14.