Claude Sonnet 5 vs Hermes 4 - Llama-3.1 405B: Release Comparison

Name: Artificial Analysis Intelligence Index
Creator: Artificial Analysis
License: https://artificialanalysis.ai/docs/legal/Terms-of-Use.pdf

Comparison of the Claude Sonnet 5 and Hermes 4 - Llama-3.1 405B releases: 6 and 2 models respectively, each with different intelligence, performance, and pricing characteristics. Below is a comparison of the key metrics across all 8 models.

For intelligence, Claude Sonnet 5 scores highest: Claude Sonnet 5 (Adaptive Reasoning, Max Effort) at 38, against Hermes 4 - Llama-3.1 405B (Reasoning) at 7 for Hermes 4 - Llama-3.1 405B.
For output speed, Claude Sonnet 5 is fastest: Claude Sonnet 5 (Adaptive Reasoning, Max Effort) at 84 t/s, against Hermes 4 - Llama-3.1 405B (Non-reasoning) at 43 t/s for Hermes 4 - Llama-3.1 405B.

Releases compared

Intelligence

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index v4.3 incorporates 10 evaluations: AA-Briefcase, GDPval-AA v2, AutomationBench-AA, Terminal-Bench 4.0, SciCode, Humanity's Last Exam, GDP.pdf, CritPt, AA-Omniscience, AA-LCR v1.1

Estimate (independent evaluation forthcoming)

Artificial Analysis Intelligence Index v4.3 includes: AA-Briefcase, GDPval-AA v2, AutomationBench-AA, Terminal-Bench 4.0, SciCode, Humanity's Last Exam, GDP.pdf, CritPt, AA-Omniscience, AA-LCR v1.1. See Intelligence Index methodology for further details, including a breakdown of each evaluation and how we run them.

Intelligence Index vs. Cost per Intelligence Index Task

Artificial Analysis Intelligence Index · Weighted average cost (USD) per Artificial Analysis Intelligence Index task

Most attractive quadrant

Claude Sonnet 5

Pareto line

Weighted average cost per Intelligence Index task. Each evaluation’s cost is calculated from input, cache hit, cache write, reasoning, and answer token prices, divided by task count, and weighted by its Intelligence Index weight.

Cost

Cost per Intelligence Index Task

Weighted average cost (USD) per Artificial Analysis Intelligence Index task, segmented by token type. Lower is better

Speed & Latency

Output Speed

Output tokens per second · Higher is better

Tokens per second received while the model is generating tokens (ie. after first chunk has been received from the API for models which support streaming).

Figures represent performance of the model's first-party API (e.g. OpenAI for o1) or the median across providers where a first-party API is not available (e.g. Meta's Llama models).

Capability Scores

Capability Indices

Measures the performance of models on specific capabilities and industries

Finance & Accounting Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Strategy & Ops Index

Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, AutomationBench-AA, AA-LCR v1.1, GDP.pdf · Higher is better

Legal Index

Incorporates 7 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, Humanity's Last Exam, AA-LCR v1.1, GDP.pdf, AutomationBench-AA · Higher is better

Healthcare & Medical Index

Incorporates 6 evaluations: AA-Omniscience, GDPval-AA v2, AA-Briefcase, MLCR-AA, Humanity's Last Exam, AutomationBench-AA · Higher is better

Engineering Index

Incorporates 6 evaluations: AA-Omniscience, Humanity's Last Exam, CritPt, GDPval-AA v2, AA-Briefcase, Terminal-Bench 4.0 · Higher is better

Economics Index

Incorporates 5 evaluations: AA-Omniscience, Humanity's Last Exam, GDPval-AA v2, AA-Briefcase, AA-LCR v1.1 · Higher is better

Further details


																												Input modality	Output modality	Weights		Provider Benchmarks
Claude Sonnet 5 (Adaptive Reasoning, Max Effort)	Anthropic	38	41	40	43	43	40	50	$5.09	$1.5	$2.00	$10.00	$0.20	$6,998	118k	88k	367M	84	195.83s	195.83s	201.79s	877.37s	-	1M	Jun 2026	-	Yes	Supports: text and image	Supports: text	Not available	-	View
Claude Sonnet 5 (Adaptive Reasoning, Xhigh Effort)	Anthropic	35	38	37	39	-	36	46	$2.87	$1.5	$2.00	$10.00	$0.20	$3,255	65k	44k	135M	62	22.30s	22.30s	30.37s	672.64s	-	1M	Jun 2026	-	Yes	Supports: text and image	Supports: text	Not available	-	View
Claude Sonnet 5 (Adaptive Reasoning, High Effort)	Anthropic	32	34	34	35	-	32	42	$1.79	$1.5	$2.00	$10.00	$0.20	$2,086	44k	28k	89M	58	2.30s	2.30s	10.90s	460.65s	-	1M	Jun 2026	-	Yes	Supports: text and image	Supports: text	Not available	-	View
Claude Sonnet 5 (Non-reasoning, High Effort)	Anthropic	29	-	-	-	-	-	-	-	$1.5	$2.00	$10.00	$0.20	-	-	-	-	58	1.08s	1.08s	9.72s	-	-	1M	Jun 2026	-	No	Supports: text and image	Supports: text	Not available	-	View
Claude Sonnet 5 (Adaptive Reasoning, Medium Effort)	Anthropic	28	31	31	32	-	29	38	$1.00	$1.5	$2.00	$10.00	$0.20	$1,218	27k	15k	51M	57	1.50s	1.50s	10.34s	285.97s	-	1M	Jun 2026	-	Yes	Supports: text and image	Supports: text	Not available	-	View
Claude Sonnet 5 (Adaptive Reasoning, Low Effort)	Anthropic	25	27	27	29	-	26	34	$0.51	$1.5	$2.00	$10.00	$0.20	$653	15k	7k	25M	56	1.21s	1.21s	10.17s	161.65s	-	1M	Jun 2026	-	Yes	Supports: text and image	Supports: text	Not available	-	View
Hermes 4 - Llama-3.1 405B (Reasoning)	Nous Research	7	-	-	-	-	-	-	-	$1.2	$1.00	$3.00	-	-	-	-	-	41	2.47s	50.66s	62.71s	-	406B	128k	Aug 2025	-	Yes	Supports: text	Supports: text	🤗	META LLAMA 3 COMMUNITY LICENSE AGREEMENT	View
Hermes 4 - Llama-3.1 405B (Non-reasoning)	Nous Research	7	-	-	-	-	-	-	-	$1.2	$1.00	$3.00	-	-	-	-	-	43	2.39s	2.39s	14.11s	-	406B	128k	Aug 2025	-	No	Supports: text	Supports: text	🤗	META LLAMA 3 COMMUNITY LICENSE AGREEMENT	View

Claude Sonnet 5 vs Hermes 4 - Llama-3.1 405B: Release Comparison

Intelligence

Artificial Analysis Intelligence Index

Artificial Analysis Intelligence Index

Intelligence Index vs. Cost per Intelligence Index Task

Cost per Intelligence Index Task

Artificial Analysis Intelligence Index

Cost

Cost per Intelligence Index Task

Cost per Intelligence Index Task

Speed & Latency

Output Speed

Output Speed

Model Performance Representation

Capability Scores

Capability Indices

Further details