AI Models · Open-Source vs Open-Source

DeepSeek V4.1 Flash 1017 Open vs Mistral Large 2407 Open

DeepSeek V4.1 Flash 1017 vs Mistral Large 2407 compared — price per token, context window, multimodality, openness and which to choose. 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 Flash 1017OpenDeepSeek
$0.01 /M input
$1.8 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window1M tokens
MultimodalYes
Self-hostYes
Mistral Large 2407OpenMistral AI
$2 /M input
$6 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window131K tokens
MultimodalNo
Self-hostYes
Choose DeepSeek V4.1 Flash 1017 for the lower output price ($1.8/M vs $6/M). It also gives you the larger 1M context window.

DeepSeek V4.1 Flash 1017 vs Mistral Large 2407 specs

SpecDeepSeek V4.1 Flash 1017Mistral Large 2407Winner
MakerDeepSeekMistral AI–
TypeOpen-weightOpen-weight–
Context window1M tokens131K tokensDeepSeek V4.1 Flash 1017
Input price$0.01/M · free self-host$2/M · free self-hostDeepSeek V4.1 Flash 1017
Output price$1.8/M · free self-host$6/M · free self-hostDeepSeek V4.1 Flash 1017
Vision / multimodalYesNoDeepSeek V4.1 Flash 1017
Tool / function callingYesYes= Tie
Self-hostableYesYes= Tie
LicenseMITApache 2.0–

Price gap & when to choose each

3.3×cheaper per output token

DeepSeek V4.1 Flash 1017 is ~3.3× cheaper than Mistral Large 2407 on output tokens ($1.8 vs $6 per M tokens).

Choose DeepSeek V4.1 Flash 1017 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 2407 if…
  • You want to self-host or run on your cloud
  • You prioritize data privacy & control
  • You are building open or reproducible AI

Feature comparison

CapabilityDeepSeek V4.1 Flash 1017Mistral Large 2407
Open weights (downloadable)✓✓
Self-hostable✓✓
Runs fully offline✓✓
Vision / multimodal✓✗
Tool / function calling✓✓
1M+ context window✓✗

Benchmarks: DeepSeek V4.1 Flash 1017 vs Mistral Large 2407

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

DeepSeek V4.1 Flash 1017
Mistral Large 2407
Intelligence index
32.5
–
Humanity's Last Exam
43.3%
2.9%
Long Context Reasoning
82.7%
2%
SciCode
55.9%
–
Math index
–
0
GPQA
–
47.2%
MMLU-Pro
–
68.3%
LiveCodeBench
–
26.7%
MATH-500
–
71.4%
AIME
–
9.3%
AIME 2025
–
0%
IFBench
–
31.6%
τ²-Bench
–
33%
Speed
164.3 tok/s
0 tok/s
Latency
0.88s
0s
Intelligence per $
61.9
–

Benchmark data by Artificial Analysis.

How DeepSeek V4.1 Flash 1017 and Mistral Large 2407 score

🏆 Best value & openness: DeepSeek V4.1 Flash 1017 (4.9 vs 4.2 / 5)
CriterionDeepSeek V4.1 Flash 1017Mistral Large 2407
Cost-efficiency4.54.0
Context window5.03.5
Openness5.05.0
Self-hosting5.05.0
Multimodality5.03.5

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 1017 Open

DeepSeek · Open-weight

DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the `deepseek-flash` API model name. V4.1 Flash is a sparse mixture-of-experts model...

Mistral Large 2407 Open

Mistral AI · Open-weight

This is Mistral AI's flagship model, Mistral Large 2 (version mistral-large-2407). It's a proprietary weights-available model and excels at reasoning, code, JSON, chat, and more. Read the launch announcement [here](https://mistral.ai/news/m

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 0813DeepSeek V4 Pro 0423R1 0528DeepSeek V3 0324DeepSeek V3DeepSeek V3.1 TerminusDeepSeek V3.1DeepSeek V4 Flash Vision ExpDeepSeek V4.1 FlashDeepSeek V3.2DeepSeek V3.2 ExpDeepSeek V4 Flash 0731DeepSeek V4 Flash 0423DeepSeek V4.1 Flash (batch)
Other variants tracked
Mistral Large 4Mistral Medium 3.5Mistral LargeMixtral 8x22B InstructMistral Medium 3.5 (batch)Mistral Medium 3.1Devstral 2 2512Mistral Medium 3Mistral Large 3 2512UncensoredCodestral 2508Mistral Small 4SabaMistral Small 3.1 24BVoxtral Small 24B 2507Mistral Small 3.2 24BMinistral 3 14B 2512Ministral 3 8B 2512Ministral 3 3B 2512Mistral Small 3Mistral Nemo

Frequently asked questions

DeepSeek V4.1 Flash 1017 vs Mistral Large 2407 — which is cheaper?

DeepSeek V4.1 Flash 1017 is cheaper on output ($1.8/M vs $6/M).

Which has the larger context window?

DeepSeek V4.1 Flash 1017 offers the larger context window (1M tokens).

DeepSeek V4.1 Flash 1017 vs Mistral Large 2407 — which should I pick in 2026?

Choose DeepSeek V4.1 Flash 1017 for the lower output price ($1.8/M vs $6/M). It also gives you the larger 1M context window.

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