AI Models · Open-Source vs Paid

Mistral Medium 3.5 (batch) Open vs Mistral Medium 3 Paid

Mistral Medium 3.5 (batch) vs Mistral Medium 3 compared — price per token, context window, multimodality, openness and which to choose. Can the open-source model replace the paid one? Full 2026 breakdown.

Mistral Medium 3 — full profile ›

Prices & specs refreshed from live data · olud.ai

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

Mistral Medium 3.5 (batch)OpenMistral AI
$0.75 /M input
$3.75 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window262K tokens
MultimodalYes
Self-hostYes
Mistral Medium 3PaidMistral AI
$0.4 /M input
$2 /M outputManaged API (no infra to run)
TypeProprietary
Context window131K tokens
MultimodalYes
Self-hostNo
Choose Mistral Medium 3.5 (batch) 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 Medium 3 if you want frontier capability through a managed API with zero infrastructure to run.

Mistral Medium 3.5 (batch) vs Mistral Medium 3 specs

SpecMistral Medium 3.5 (batch)Mistral Medium 3Winner
MakerMistral AIMistral AI–
TypeOpen-weightProprietaryMistral Medium 3.5 (batch)
Context window262K tokens131K tokensMistral Medium 3.5 (batch)
Input price$0.75/M · free self-host$0.4/MMistral Medium 3
Output price$3.75/M · free self-host$2/MMistral Medium 3
Vision / multimodalYesYes= Tie
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Mistral Medium 3.5 (batch)
LicenseApache 2.0ProprietaryMistral Medium 3.5 (batch)

Price gap & when to choose each

1.9×cheaper per output token

Mistral Medium 3 is ~1.9× cheaper than Mistral Medium 3.5 (batch) on output tokens ($2 vs $3.75 per M tokens).

Choose Mistral Medium 3.5 (batch) if…
  • You want to self-host or run on your cloud
  • You need the longer 262K context window
  • You prioritize data privacy & control
  • You are building open or reproducible AI
Choose Mistral Medium 3 if…
  • You want frontier performance through a managed API
  • You want the lower output price
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityMistral Medium 3.5 (batch)Mistral Medium 3
Open weights (downloadable)✓✗
Self-hostable✓✗
Runs fully offline✓✗
Vision / multimodal✓✓
Tool / function calling✓✓
1M+ context window✗✗

Benchmarks: Mistral Medium 3.5 (batch) vs Mistral Medium 3

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

Mistral Medium 3 delivers 2.3× more intelligence per dollar.
Mistral Medium 3.5 (batch)
Mistral Medium 3
Intelligence index
14.9
9
Coding index
46.9
–
GPQA
74.8%
57.8%
Humanity's Last Exam
13.8%
4.1%
Long Context Reasoning
69.3%
31.3%
SciCode
40.2%
–
IFBench
68.8%
39.3%
τ²-Bench
94.2%
24.3%
τ-Bench Banking
15.1%
–
Terminal-Bench
50.6%
–
Terminal-Bench Hard
33.3%
3.8%
Math index
–
30.3
MMLU-Pro
–
76%
LiveCodeBench
–
40%
MATH-500
–
90.7%
AIME
–
44%
AIME 2025
–
30.3%
Speed
142.2 tok/s
0 tok/s
Latency
0.74s
0s
Intelligence per $
5
11.3

Benchmark data by Artificial Analysis.

How Mistral Medium 3.5 (batch) and Mistral Medium 3 score

🏆 Best value & openness: Mistral Medium 3.5 (batch) (4.6 vs 3.1 / 5)
CriterionMistral Medium 3.5 (batch)Mistral Medium 3
Cost-efficiency4.04.5
Context window4.03.5
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

Mistral Medium 3.5 (batch) Open

Mistral AI · Open-weight

Mistral Medium 3.5 is a dense 128B instruction-following model from Mistral AI. It supports text and image inputs with text output, and is designed for agentic workflows, coding, and complex...

Mistral Medium 3 Paid

Mistral AI · Proprietary

Mistral Medium 3 is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost. It balances state-of-the-art reasoning and multimodal performance with 8× lowe

Other models in these families

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

Other variants tracked
Mistral Medium 3.5Mistral Small 4Mistral Small 4 (batch)Mistral Medium 3.1Mistral Medium 3.1 (batch)Mistral Large 3 2512Mistral Large 3 2512 (batch)Devstral 2 2512Mistral Medium 3Mistral Small 3.1 24BMistral Small 3.2 24BMistral LargeMistral Large 2407Mistral Small 3SabaMinistral 3 14B 2512Mixtral 8x22B InstructMinistral 3 8B 2512Ministral 3 8B 2512 (batch)Ministral 3 3B 2512UncensoredCodestral 2508Codestral 2508 (batch)Voxtral Small 24B 2507Mistral Nemo

Frequently asked questions

Is Mistral Medium 3.5 (batch) as good as Mistral Medium 3?

Mistral Medium 3.5 (batch) is open-weight and competitive on many tasks, but Mistral Medium 3 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 Mistral Medium 3.5 (batch) locally?

Yes. Mistral Medium 3.5 (batch) has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Mistral Medium 3 is API-only and cannot be self-hosted.

Mistral Medium 3.5 (batch) vs Mistral Medium 3 — which should I pick in 2026?

Choose Mistral Medium 3.5 (batch) 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 Medium 3 if you want frontier capability through a managed API with zero infrastructure to run.

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