AI Models · Open-Source vs Paid

Hy3 Open vs Mistral Medium 3.1 Paid

Hy3 vs Mistral Medium 3.1 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.

Hy3OpenTencent
$0.08 /M input
$0.33 /M outputNo per-token fees if you self-host
TypeOpen-weight
Context window262K tokens
MultimodalNo
Self-hostYes
Mistral Medium 3.1PaidMistral AI
$0.4 /M input
$2 /M outputManaged API (no infra to run)
TypeProprietary
Context window131K tokens
MultimodalYes
Self-hostNo
Choose Hy3 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 3.1 if you want frontier capability through a managed API with zero infrastructure to run.

Hy3 vs Mistral Medium 3.1 specs

SpecHy3Mistral Medium 3.1Winner
MakerTencentMistral AI–
TypeOpen-weightProprietaryHy3
Context window262K tokens131K tokensHy3
Input price$0.08/M · free self-host$0.4/MHy3
Output price$0.33/M · free self-host$2/MHy3
Vision / multimodalNoYesMistral Medium 3.1
Tool / function callingYesYes= Tie
Self-hostableYesNo (API only)Hy3
LicenseOpen weightsProprietaryHy3

Price gap & when to choose each

6.1×cheaper per output token

Hy3 is ~6.1× cheaper than Mistral Medium 3.1 on output tokens ($0.33 vs $2 per M tokens).

Choose Hy3 if…
  • You want to self-host or run on your cloud
  • You need the longer 262K context window
  • You prioritize data privacy & control
  • You want the lowest operating costs
  • You are building open or reproducible AI
Choose Mistral Medium 3.1 if…
  • You want frontier performance through a managed API
  • You value reliability & ecosystem
  • You don't want to manage infrastructure

Feature comparison

CapabilityHy3Mistral Medium 3.1
Open weights (downloadable)✓✗
Self-hostable✓✗
Runs fully offline✓✗
Vision / multimodal✗✓
Tool / function calling✓✓
1M+ context window✗✗

Benchmarks: Hy3 vs Mistral Medium 3.1

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

Hy3
Mistral Medium 3.1
Intelligence index
25.3
9.2
Coding index
58.8
20.5
GPQA
89.7%
58.8%
Humanity's Last Exam
33.5%
4.7%
Long Context Reasoning
79%
42.7%
SciCode
48.6%
32.4%
τ-Bench Banking
22.9%
8.2%
Terminal-Bench
64.4%
13.9%
Math index
–
38.3
MMLU-Pro
–
68.3%
LiveCodeBench
–
40.6%
AIME 2025
–
38.3%
IFBench
–
39.8%
τ²-Bench
–
40.6%
Terminal-Bench Hard
–
10.6%
Speed
91.1 tok/s
0 tok/s
Latency
1.87s
0s
Intelligence per $
105
–

Benchmark data by Artificial Analysis.

How Hy3 and Mistral Medium 3.1 score

🏆 Best value & openness: Hy3 (4.5 vs 3.1 / 5)
CriterionHy3Mistral Medium 3.1
Cost-efficiency5.04.5
Context window4.03.5
Openness5.01.5
Self-hosting5.01.0
Multimodality3.55.0

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

Hy3 Open

Tencent · Open-weight

Hy3 is a 295B-parameter Mixture-of-Experts model from Tencent (21B active, 192 experts with top-8 routing) built for reasoning, agentic workflows, and real-world production use. It supports a configurable reasoning effort:...

Mistral Medium 3.1 Paid

Mistral AI · Proprietary

Mistral Medium 3.1 is an updated version of Mistral Medium 3, which is a high-performance enterprise-grade language model designed to deliver frontier-level capabilities at significantly reduced operational cost. It balances...

Other models in these families

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

Other variants tracked
Hy3 previewHy4 previewHunyuan A13B InstructHy-MT2-30B-A3BHy-MT2-7BHy-MT2-1.8B

Frequently asked questions

Is Hy3 as good as Mistral Medium 3.1?

Hy3 is open-weight and competitive on many tasks, but Mistral Medium 3.1 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 Hy3 locally?

Yes. Hy3 has open weights, so you can self-host it on your own GPUs or run it via a low-cost API. Mistral Medium 3.1 is API-only and cannot be self-hosted.

How much cheaper is Hy3?

Hy3 costs $0.33/M output vs $2/M for Mistral Medium 3.1 — roughly 6x cheaper via API, and free if you self-host.

Hy3 vs Mistral Medium 3.1 — which should I pick in 2026?

Choose Hy3 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 3.1 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 →