AI Models · Open-Source vs Paid

DeepSeek V4.1 Flash Open vs Mistral Large 3 2512 (batch) Paid

DeepSeek V4.1 Flash vs Mistral Large 3 2512 (batch) compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Prices & specs refreshed from live data · olud.ai

Open-model prices = cheapest provider via OpenRouter; official maker rates may be higher.

DeepSeek V4.1 FlashOpenDeepSeek
$0.15 /M input
$0.6 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window1M tokens
MultimodalYes
Self-hostYes
Mistral Large 3 2512 (batch)PaidMistral AI
$0.25 /M input
$0.75 /M outputManaged API (no infra to run)
TypeProprietary
Context window262K tokens
MultimodalYes
Self-hostNo
Choose DeepSeek V4.1 Flash if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Mistral Large 3 2512 (batch) if you want frontier capability through a managed API with zero infrastructure to run.

DeepSeek V4.1 Flash vs Mistral Large 3 2512 (batch) specs

SpecDeepSeek V4.1 FlashMistral Large 3 2512 (batch)Winner
MakerDeepSeekMistral AI
TypeOpen-weightProprietaryDeepSeek V4.1 Flash
Context window1M tokens262K tokensDeepSeek V4.1 Flash
Input price$0.15/M · free self-host$0.25/MDeepSeek V4.1 Flash
Output price$0.6/M · free self-host$0.75/MDeepSeek V4.1 Flash
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)DeepSeek V4.1 Flash
LicenseMITProprietaryDeepSeek V4.1 Flash

Price gap & when to choose each

Choose DeepSeek V4.1 Flash if…
  • You want to self-host or run on your cloud
  • You need the longer 1M context window
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose Mistral Large 3 2512 (batch) if…
  • You want frontier performance through a managed API
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityDeepSeek V4.1 FlashMistral Large 3 2512 (batch)
Open weights (downloadable)
Self-hostable
Runs fully offline
Vision / multimodal
Tool / function calling
1M+ context window

Benchmarks: DeepSeek V4.1 Flash vs Mistral Large 3 2512 (batch)

Independent benchmark scores measured by Artificial Analysis. Higher is better (except latency).

DeepSeek V4.1 Flash delivers 5.8× more intelligence per dollar.
DeepSeek V4.1 Flash
Mistral Large 3 2512 (batch)
Intelligence index
39.5
9.7
Humanity's Last Exam
39.2%
4.2%
Long Context Reasoning
84%
36%
SciCode
51.9%
36.6%
Coding index
20.1
Math index
38
GPQA
68%
MMLU-Pro
80.7%
LiveCodeBench
46.5%
AIME 2025
38%
IFBench
36.2%
τ²-Bench
24.6%
τ-Bench Banking
5.8%
Terminal-Bench
12%
Terminal-Bench Hard
15.9%
Speed
260.5 tok/s
81.3 tok/s
Latency
0.92s
0.68s
Intelligence per $
75.2
12.9

Benchmark data by Artificial Analysis.

How DeepSeek V4.1 Flash and Mistral Large 3 2512 (batch) score

🏆 Best value & openness: DeepSeek V4.1 Flash (5.0 vs 3.3 / 5)
CriterionDeepSeek V4.1 FlashMistral Large 3 2512 (batch)
Cost-efficiency5.05.0
Context window5.04.0
Openness5.01.5
Self-hosting5.01.0
Multimodality5.05.0

Scores come from live data — output price (cost), context length, open vs closed weights (openness & self-hosting) and vision/tool support (multimodality). Raw task quality isn't scored here; it depends on your benchmark — see the verdict.

What each model is

DeepSeek V4.1 Flash Open

DeepSeek · Open-weight

DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...

Mistral Large 3 2512 (batch) Paid

Mistral AI · Proprietary

Mistral Large 3 2512 is Mistral’s most capable model to date, featuring a sparse mixture-of-experts architecture with 41B active parameters (675B total), and released under the Apache 2.0 license.

Other models in these families

These variants are tracked but not compared here — one page per family keeps the comparison readable.

Other variants tracked
DeepSeek V4 Pro 0423DeepSeek V4 Pro 0813 (batch)DeepSeek V4 Pro 0813DeepSeek V4 Flash 0731 (batch)DeepSeek V4 Flash 0423DeepSeek V4 Flash 0731DeepSeek V3.2 ExpDeepSeek V3.2DeepSeek V3.1 TerminusDeepSeek V3.1R1 0528R1DeepSeek V3 0324DeepSeek V3DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp (batch)

Frequently asked questions

Is DeepSeek V4.1 Flash as good as Mistral Large 3 2512 (batch)?

DeepSeek V4.1 Flash is open-weight and competitive on many tasks, but Mistral Large 3 2512 (batch) may still lead on the hardest reasoning and agentic work. The gap keeps narrowing — benchmark both on your actual use case before deciding.

Can I run DeepSeek V4.1 Flash locally?

Yes. DeepSeek V4.1 Flash has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Mistral Large 3 2512 (batch) is API-only and cannot be self-hosted.

DeepSeek V4.1 Flash vs Mistral Large 3 2512 (batch) — which should I pick in 2026?

Choose DeepSeek V4.1 Flash if you want to self-host, keep your data private and skip per-token fees — it's open-weight and runs on your own hardware. Choose Mistral Large 3 2512 (batch) if you want frontier capability through a managed API with zero infrastructure to run.

People also compare

Explore more open-source AI

Browse the full open-source model leaderboard, thousands of tools and live benchmarks — all in one place.

Open the leaderboard →