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  3. Gemini 2.5 Pro vs Nous: Hermes 3 405B Instruct

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Gemini 2.5 Pro vs Nous: Hermes 3 405B Instruct benchmark

In this head-to-head showdown, Nous: Hermes 3 405B Instruct is more budget-friendly at $1/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose Gemini 2.5 Pro if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Nous: Hermes 3 405B Instruct if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Executive Verdict Summary

Nous: Hermes 3 405B Instruct holds empirical advantage (2 of 3 metrics)

Coding / SWESWE-bench
Gemini 2.5 ProTop code solve rate
ReasoningGPQA / Live
Gemini 2.5 ProTop logical accuracy
Best Value$/1M Tok
Nous: Hermes 3 405B InstructLowest API billing cost
Speed / TokTok/Sec
Gemini 2.5 ProFastest stream rate

Verified Advantage Breakdown

3 benchmarks evaluated across capability, speed, and cost

Gemini 2.5 Pro (1)Nous: Hermes 3 405B Instruct (2)
Gemini 2.5 Pro
1 of 3 Wins
✓Context window
Nous: Hermes 3 405B Instruct
2 of 3 Wins
✓Input price✓Output price
Google
Leads 1 of 3
Gemini 2.5 Pro

Previous Google long-context flagship.

Elo 1,350In: $1.25 · Out: $10/1M
nousresearch
Leads 2 of 3
Nous: Hermes 3 405B Instruct

Auto-discovered from OpenRouter (nousresearch/hermes-3-llama-3.1-405b). Preview until a second source matches.

In: $1 · Out: $1/1M
Top Rival Showdowns for Gemini 2.5 Pro
All Matchups
Compare vs:vs Claude Opus 4.5vs GPT-5vs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderNous: Hermes 3 405B Instruct Wins

Nous: Hermes 3 405B Instruct

$1 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Gemini 2.5 Pro (7)vsNous: Hermes 3 405B Instruct (2)
Gemini 2.5 Pro: 7W (78%)Overall: Gemini 2.5 ProNous: Hermes 3 405B Instruct: 2W (22%)
← Gemini 2.5 ProNous: Hermes 3 405B Instruct →
🏆Gemini 2.5 Pro Leads(4/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
Gemini 2.5 ProvsNous: Hermes 3 405B Instruct
Preference Elo
1,350vs—
Coding Elo
—vs—
SWE-bench
63.8%vs—
LiveBench
57.1%vs—
GPQA Diamond
76.4%vs—
Gemini 2.5 Pro: 4WNous: Hermes 3 405B Instruct: 0W
🏆Gemini 2.5 Pro Leads(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Gemini 2.5 ProvsNous: Hermes 3 405B Instruct
Output speed
95 tok/svs—
Time to first token
210 msvs—
Gemini 2.5 Pro: 2WNous: Hermes 3 405B Instruct: 0W
🏆Nous: Hermes 3 405B Instruct Leads(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Gemini 2.5 ProvsNous: Hermes 3 405B Instruct
Output price
$10/1Mvs$1/1M+$9/1M
Input price
$1.25/1Mvs$1/1M+$0.25/1M
Context window
1Mvs131k+918k
Gemini 2.5 Pro: 1WNous: Hermes 3 405B Instruct: 2W

Side-by-Side Benchmark Matrix

Gemini 2.5 ProNous: Hermes 3 405B Instruct
Preference Elo
Gemini 2.5 Pro1,350
Nous: Hermes 3 405B Instruct—
LiveBench
Gemini 2.5 Pro57.1%
Nous: Hermes 3 405B Instruct—
SWE-bench
Gemini 2.5 Pro63.8%
Nous: Hermes 3 405B Instruct—
GPQA Diamond
Gemini 2.5 Pro76.4%
Nous: Hermes 3 405B Instruct—
Time to first token
Gemini 2.5 Pro210 ms
Nous: Hermes 3 405B Instruct—
Output speed
Gemini 2.5 Pro95 tok/s
Nous: Hermes 3 405B Instruct—
Input priceNous: Hermes 3 405B Instruct +$0.25/1M
Gemini 2.5 Pro$1.25/1M
Nous: Hermes 3 405B Instruct$1/1M
Output priceNous: Hermes 3 405B Instruct +$9/1M
Gemini 2.5 Pro$10/1M
Nous: Hermes 3 405B Instruct$1/1M
Context windowGemini 2.5 Pro +918k
Gemini 2.5 Pro1M
Nous: Hermes 3 405B Instruct131k
BenchmarkGemini 2.5 ProNous: Hermes 3 405B InstructAdvantage Delta
Preference Elo
1,350
lmarena · Aug 17, 2026
——
LiveBench
57.1%
livebench · Aug 17, 2026
——
SWE-bench
63.8%
swebench · Aug 17, 2026
——
GPQA Diamond
76.4%
seed-bootstrap · Aug 1, 2026
——
Time to first token
210 ms
seed-bootstrap · Aug 1, 2026
——
Output speed
95 tok/s
seed-bootstrap · Aug 1, 2026
——
Input price
$1.25/1M
openrouter · Aug 17, 2026
$1/1M
openrouter · Aug 17, 2026
+$0.25/1M
Output price
$10/1M
openrouter · Aug 17, 2026
$1/1M
openrouter · Aug 17, 2026
+$9/1M
Context window
1M
openrouter · Aug 17, 2026
131k
openrouter · Aug 17, 2026
+918k

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save 74% with Nous: Hermes 3 405B Instruct
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Gemini 2.5 Pro$193.75 / mo
In: $43.75Out: $150
Nous: Hermes 3 405B Instruct$50.00 / mo
In: $35Out: $15
Estimated Cost Delta

Nous: Hermes 3 405B Instruct is estimated to save $143.75/month ($1,725/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Nous: Hermes 3 405B Instruct:Pick Nous: Hermes 3 405B Instruct when you are optimizing output cost.
  • 2
    Gemini 2.5 Pro:Pick Gemini 2.5 Pro for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatNous: Hermes 3 405B Instruct

Lower output list price ($1/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGemini 2.5 Pro

Larger window (1M).

Screenshots / visionGemini 2.5 Pro

Gemini 2.5 Pro is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatNous: Hermes 3 405B InstructLower output list price ($1/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGGemini 2.5 ProLarger window (1M).
Screenshots / visionGemini 2.5 ProGemini 2.5 Pro is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news
launchMar 25, 2025

Gemini 2.5 Pro remains the previous Google long-context flagship

2025-03 row. 3.x Pro replaced it. Kept for old “2.5 pro vs gpt-4o” inbound.

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Google

Gemini 2.5 Pro

Elo 1,350
SWE-bench63.8%
Speed (tok/s)95 tok/s
Input / 1M Tokens$1.25/1M
Output / 1M Tokens$10/1M
nousresearch

Nous: Hermes 3 405B Instruct

Elo n/a
SWE-bench—
Speed (tok/s)131k
Input / 1M Tokens$1/1M
Output / 1M Tokens$1/1M

Frequently Asked Questions

Which is better overall, Gemini 2.5 Pro or Nous: Hermes 3 405B Instruct?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Gemini 2.5 Pro or Nous: Hermes 3 405B Instruct?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
Nous: Hermes 3 405B Instruct output tokens are $1/1M versus $10/1M. Input prices and retry rates still move the real bill.
Which is faster, Gemini 2.5 Pro or Nous: Hermes 3 405B Instruct?
We do not have TTFT for both models.
Which has the larger context window?
Gemini 2.5 Pro accepts 1M tokens versus 131k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Gemini 2.5 Pro and Nous: Hermes 3 405B Instruct Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · Mar 25, 2025

    Gemini 2.5 Pro remains the previous Google long-context flagship

Similar Head-to-Head Comparisons

All Gemini 2.5 Pro matchups →|All Nous: Hermes 3 405B Instruct matchups →
Gemini 2.5 Pro vs Gemini 1.5 Pro (previous gemini-pro)Gemini 2.5 Pro vs Gemini 3 Pro (next gemini-pro)Gemini 2.0 Flash Thinking vs Gemini 2.5 ProGemini 3 Flash vs Gemini 2.5 ProGemini 3.6 Flash vs Gemini 2.5 ProGemini 3.6 Pro vs Gemini 2.5 Pro