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Claude Opus 4 vs Hermes 3 405B Instruct

Detailed technical comparison between Claude Opus 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 Opus 4: 6 WinsvsHermes 3 405B Instruct: 0 Wins
Context Leader

Claude Opus 4

200,000 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 Opus 4

Claude Opus 4 is benchmarked as the world’s best coding model, at time of release, bringing sustained performance on complex, long-running tasks and agent workflows. It sets new benchmarks in...

View Claude Opus 4 Full Specs β†’
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 β†’

Technical Specifications

πŸ† = Superior Spec
SpecificationClaude Opus 4Hermes 3 405B Instruct
ProviderAnthropicNous Research
Context Window200,000 tokensπŸ†131,072 tokens
Agent SuitabilityN/AN/A
Time to First Token (TTFT)N/AN/A
Deployment Modelmanaged apiself hostable
Production Stabilitystablestable
API AvailableYesYes
Released Date2025-05-222024-08-16

API Pricing Comparison

Input Price per Million Tokens

Claude Opus 4

$15.00

Hermes 3 405B Instruct

$1.00

Output Price per Million Tokens

Claude Opus 4

$75.00

Hermes 3 405B Instruct

$1.00

πŸ’‘ Cost Ratio: Hermes 3 405B Instruct is 15.0x cheaper per input token than Claude Opus 4.

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.

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
90.5%vs78.8%+11.7% Claude Opus 4
Claude Opus 4 πŸ†
Hermes 3 405B Instruct
HumanEvalPython coding & logic synthesis
93.0%vs77.0%+16.0% Claude Opus 4
Claude Opus 4 πŸ†
Hermes 3 405B Instruct
MATHComplex mathematical problem solving
85.4%vs54.2%+31.2% Claude Opus 4
Claude Opus 4 πŸ†
Hermes 3 405B Instruct
GPQAGraduate-level expert reasoning
72.3%vs39.6%+32.7% Claude Opus 4
Claude Opus 4 πŸ†
Hermes 3 405B Instruct
HellaSwagCommonsense reasoning and inference
96.5%vs81.8%+14.7% Claude Opus 4
Claude Opus 4 πŸ†
Hermes 3 405B Instruct
MT-BenchMulti-turn conversation flow quality
9.4%vs8.4%+1.0% Claude Opus 4
Claude Opus 4 πŸ†
Hermes 3 405B Instruct

Claude Opus 4 Quirks & Gotchas

No developer gotchas reported.

Hermes 3 405B Instruct Quirks & Gotchas

No developer gotchas reported.

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