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Claude Sonnet 4 vs Hermes 3 405B Instruct

Detailed technical comparison between Claude Sonnet 4 (Anthropic) and Hermes 3 405B Instruct (Nous Research). 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

Claude Sonnet 4: 6 WinsvsHermes 3 405B Instruct: 0 Wins
Context Leader

Claude Sonnet 4

1,000,000 tokens
Agentic Tool-Calling

Tie

Equal Capability
Lowest Latency (TTFT)

Tie

Equal Speed
Input Price Leader

Hermes 3 405B Instruct

$1.00 / MTok
Anthropicactive

Claude Sonnet 4

Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...

View Claude Sonnet 4 Full Specs →
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 →

Technical Specifications

🏆 = Superior Spec
SpecificationClaude Sonnet 4Hermes 3 405B Instruct
ProviderAnthropicNous Research
Context Window1,000,000 tokens🏆131,072 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apiself hostable
Production Stabilitybetastable
API AvailableYesYes
Released Date2025-05-222024-08-16

API Pricing Comparison

Input Price per Million Tokens

Claude Sonnet 4

$3.00

Hermes 3 405B Instruct

$1.00

Output Price per Million Tokens

Claude Sonnet 4

$15.00

Hermes 3 405B Instruct

$1.00

💡 Cost Ratio: Hermes 3 405B Instruct is 3.0x cheaper per input token than Claude Sonnet 4.

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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
88.0%vs78.8%+9.2% Claude Sonnet 4
Claude Sonnet 4 🏆
Hermes 3 405B Instruct
HumanEvalPython coding & logic synthesis
91.5%vs77.0%+14.5% Claude Sonnet 4
Claude Sonnet 4 🏆
Hermes 3 405B Instruct
MATHComplex mathematical problem solving
78.8%vs54.2%+24.6% Claude Sonnet 4
Claude Sonnet 4 🏆
Hermes 3 405B Instruct
GPQAGraduate-level expert reasoning
60.5%vs39.6%+20.9% Claude Sonnet 4
Claude Sonnet 4 🏆
Hermes 3 405B Instruct
HellaSwagCommonsense reasoning and inference
95.0%vs81.8%+13.2% Claude Sonnet 4
Claude Sonnet 4 🏆
Hermes 3 405B Instruct
MT-BenchMulti-turn conversation flow quality
9.2%vs8.4%+0.8% Claude Sonnet 4
Claude Sonnet 4 🏆
Hermes 3 405B Instruct

Claude Sonnet 4 Quirks & Gotchas

No developer gotchas reported.

Hermes 3 405B Instruct Quirks & Gotchas

No developer gotchas reported.

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