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Hermes 3 405B Instruct vs DeepSeek V3.1

Detailed technical comparison between Hermes 3 405B Instruct (Nous Research) and DeepSeek V3.1 (DeepSeek). 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 3 405B Instruct: 0 WinsvsDeepSeek V3.1: 6 Wins
Context Leader

DeepSeek V3.1

163,840 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

DeepSeek V3.1

$0.25 / MTok
Nous Researchactive

Hermes 3 405B Instruct

Hermes 3 is a generalist language model with many improvements over Hermes 2, including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence, and improvements across the...

View Hermes 3 405B Instruct Full Specs →
DeepSeekactive

DeepSeek V3.1

DeepSeek-V3.1 is a large hybrid reasoning model (671B parameters, 37B active) that supports both thinking and non-thinking modes via prompt templates. It extends the DeepSeek-V3 base with a two-phase long-context...

View DeepSeek V3.1 Full Specs →

Technical Specifications

🏆 = Superior Spec
SpecificationHermes 3 405B InstructDeepSeek V3.1
ProviderNous ResearchDeepSeek
Context Window131,072 tokens163,840 tokens🏆
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelself hostableself hostable
Production Stabilitystablestable
API AvailableYesYes
Released Date2024-08-162025-08-21

API Pricing Comparison

Input Price per Million Tokens

Hermes 3 405B Instruct

$1.00

DeepSeek V3.1

$0.25

Output Price per Million Tokens

Hermes 3 405B Instruct

$1.00

DeepSeek V3.1

$0.95

💡 Cost Ratio: DeepSeek V3.1 is 4.0x cheaper per input token than Hermes 3 405B Instruct.

Want to test both models live?

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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
78.8%vs80.0%+1.2% DeepSeek V3.1
Hermes 3 405B Instruct
DeepSeek V3.1 🏆
HumanEvalPython coding & logic synthesis
77.0%vs78.2%+1.2% DeepSeek V3.1
Hermes 3 405B Instruct
DeepSeek V3.1 🏆
MATHComplex mathematical problem solving
54.2%vs55.4%+1.2% DeepSeek V3.1
Hermes 3 405B Instruct
DeepSeek V3.1 🏆
GPQAGraduate-level expert reasoning
39.6%vs40.8%+1.2% DeepSeek V3.1
Hermes 3 405B Instruct
DeepSeek V3.1 🏆
HellaSwagCommonsense reasoning and inference
81.8%vs83.0%+1.2% DeepSeek V3.1
Hermes 3 405B Instruct
DeepSeek V3.1 🏆
MT-BenchMulti-turn conversation flow quality
8.4%vs8.6%+0.1% DeepSeek V3.1
Hermes 3 405B Instruct
DeepSeek V3.1 🏆

Hermes 3 405B Instruct Quirks & Gotchas

No developer gotchas reported.

DeepSeek V3.1 Quirks & Gotchas

No developer gotchas reported.

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