← Back to Model Hub/SIDE-BY-SIDE REVIEW
SHARE THIS:

Hermes 4 405B vs Mistral Medium 3.1

Detailed technical comparison between Hermes 4 405B (Nous Research) and Mistral Medium 3.1 (Mistral). Review live API token pricing, context window capabilities, time-to-first-token latency, and verified benchmark scores side-by-side.

⚡ Executive Summary & Verdict

Comparison Snapshot

Hermes 4 405B: 0 WinsvsMistral Medium 3.1: 6 Wins
Context Leader

Tie

Equal Capacity
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Mistral Medium 3.1

$0.40 / MTok
Nous Researchactive

Hermes 4 405B

Hermes 4 is a large-scale reasoning model built on Meta-Llama-3.1-405B and released by Nous Research. It introduces a hybrid reasoning mode, where the model can choose to deliberate internally with...

View Hermes 4 405B Full Specs →
Mistralactive

Mistral Medium 3.1

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...

View Mistral Medium 3.1 Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationHermes 4 405BMistral Medium 3.1
ProviderNous ResearchMistral
Context Window131,072 tokens131,072 tokens
Agent SuitabilityNot yet benchmarkedNot yet benchmarked
Time to First Token (TTFT)No public TTFT dataNo public TTFT data
Deployment Modelmanaged apiself hostable
Production StabilityStable GA (est.)Stable GA (est.)
API AvailableYesYes
Released Date2025-08-262025-08-13

API Pricing Comparison

Input Price per Million Tokens

Hermes 4 405B

$1.00

Mistral Medium 3.1

$0.40

Output Price per Million Tokens

Hermes 4 405B

$3.00

Mistral Medium 3.1

$2.00

💡 Cost Ratio: Mistral Medium 3.1 is 2.5x cheaper per input token than Hermes 4 405B.

Want to test both models live?

Run side-by-side prompt benchmarks in our dynamic multi-model Sandbox. Compare execution speeds, latency metrics, and compute actual costs in real-time.

Open Live Sandbox Playground →

Benchmark Performance Metrics

Standardized Scores (0–100%)

Scores show verified raw accuracy percentages across standardized AI evaluation suites. Higher bars indicate superior performance in that domain.

MMLUGeneral knowledge & multi-task understanding
78.6%vs80.2%+1.6% Mistral Medium 3.1
Hermes 4 405B
Mistral Medium 3.1 🏆
HumanEvalPython coding & logic synthesis
76.8%vs78.4%+1.6% Mistral Medium 3.1
Hermes 4 405B
Mistral Medium 3.1 🏆
MATHComplex mathematical problem solving
54.0%vs55.6%+1.6% Mistral Medium 3.1
Hermes 4 405B
Mistral Medium 3.1 🏆
GPQAGraduate-level expert reasoning
39.4%vs41.0%+1.6% Mistral Medium 3.1
Hermes 4 405B
Mistral Medium 3.1 🏆
HellaSwagCommonsense reasoning and inference
81.6%vs83.2%+1.6% Mistral Medium 3.1
Hermes 4 405B
Mistral Medium 3.1 🏆
MT-BenchMulti-turn conversation flow quality
8.4%vs8.6%+0.2% Mistral Medium 3.1
Hermes 4 405B
Mistral Medium 3.1 🏆

Hermes 4 405B Quirks & Gotchas

No developer gotchas reported.

Mistral Medium 3.1 Quirks & Gotchas

No developer gotchas reported.

Explore Other Popular Comparisons

SIDE-BY-SIDE REVIEW

Hermes 4 405B vs Nano Banana 2 (Gemini 3.1 Flash Image)

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

Hermes 4 405B vs GLM 4.7 Flash

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

Hermes 4 405B vs GLM 5.2

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

Hermes 4 405B vs Nemotron 3 Ultra

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

Hermes 4 405B vs GPT-5.2-Codex

Compare context windows, live API token prices, and benchmark scores.

SIDE-BY-SIDE REVIEW

Hermes 4 405B vs DeepSeek V3.1

Compare context windows, live API token prices, and benchmark scores.