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DeepSeek-V4.1-Flash vs Hermes 3 405B

DeepSeek-V4.1-Flash leads the LLM Stats Score 51.8 to 4.3. DeepSeek-V4.1-Flash is 3.0x cheaper per token.

DeepSeek · Nous Research · Updated for 2026

Which is better?

DeepSeek-V4.1-Flash leads the overall LLM Stats Score 51.8 to 4.3, ranking #12 overall.

On price, DeepSeek-V4.1-Flash is roughly 3.0x cheaper per token on a blended 3:1 input/output basis, which adds up quickly at production volume.

DeepSeek-V4.1-Flash also accepts a larger context window (1,040,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose DeepSeek-V4.1-Flash

  • overall performance matters — it scores 51.8 and ranks #12 on LLM Stats
  • your work emphasizes reasoning — it leads those capability indexes
  • cost matters — it's about 3.0x cheaper per token
  • you process long inputs — it offers a 1,040,000 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Hermes 3 405B

  • you want predictable pricing at $1.00/M input and $1.00/M output

At a glance

The differences that matter most.

DeepSeek-V4.1-Flash
DeepSeek
Hermes 3 405B
Nous Research
Core performance indexes
LLM Stats Score
51.8
#12
4.3
#300
Reasoning
48.9
#17
3.7
#298
Cost, coverage & limits
Benchmark wins
—
—
Input price
$0.22 / M
$1.00 / M
Output price
$0.66 / M
$1.00 / M
Context window
1,040,000
131,072

Capability indexes

Additional strengths measured across groups of related public benchmarks

1 shared
Index
DeepSeek-V4.1-Flash
Hermes 3 405B
Math
35.2#43
6.7#268
Conservative TrueSkill rating · higher is betterHow scores work

Individual benchmarks

20 reported for DeepSeek-V4.1-Flash · 13 for Hermes 3 405B

No common benchmarks found

DeepSeek-V4.1-Flash and Hermes 3 405Bdon't have any common benchmark datasets to compare. They may have been evaluated on different testing suites.

Human preference

Blind head-to-head votes and playground preference scores

Pricing Analysis

Price comparison per million tokens

DeepSeek-V4.1-Flash costs less

For input processing, DeepSeek-V4.1-Flash ($0.22/1M tokens) is 4.5x cheaper than Hermes 3 405B ($1.00/1M tokens).

For output processing, DeepSeek-V4.1-Flash ($0.66/1M tokens) is 1.5x cheaper than Hermes 3 405B ($1.00/1M tokens).

In conclusion, Hermes 3 405B is more expensive than DeepSeek-V4.1-Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers
Sat Sep 12 2026 • llm-stats.com
DeepSeek
DeepSeek-V4.1-Flash
Input tokens$0.22
Output tokens$0.66
Best providerFireworks
Nous Research
Hermes 3 405B
Input tokens$1.00
Output tokens$1.00
Best providerDeepinfra
Notice missing or incorrect data?Start an Issue→

Model Size

Parameter count comparison

358.2B diff

DeepSeek-V4.1-Flash has 358.2B more parameters than Hermes 3 405B, making it 88.4% larger.

DeepSeek
DeepSeek-V4.1-Flash
763.2Bparameters
Nous Research
Hermes 3 405B
405.0Bparameters
763.2B
DeepSeek-V4.1-Flash
405.0B
Hermes 3 405B

Context Window

Maximum input and output token capacity

DeepSeek-V4.1-Flash accepts 1,040,000 input tokens compared to Hermes 3 405B's 131,072 tokens. DeepSeek-V4.1-Flash can generate longer responses up to 393,216 tokens, while Hermes 3 405B is limited to 131,072 tokens.

DeepSeek
DeepSeek-V4.1-Flash
Input1,040,000 tokens
Output393,216 tokens
Nous Research
Hermes 3 405B
Input131,072 tokens
Output131,072 tokens
Sat Sep 12 2026 • llm-stats.com

Input capabilities

Documented input modalities across available providers

DeepSeek-V4.1-Flash supports multimodal inputs, whereas Hermes 3 405B does not.

DeepSeek-V4.1-Flash can handle both text and other forms of data like images, making it suitable for multimodal applications.

DeepSeek-V4.1-Flash

Text
Images
Audio
Video

Hermes 3 405B

Text
Images
Audio
Video

License

Usage and distribution terms

DeepSeek-V4.1-Flash is licensed under MIT, while Hermes 3 405B uses Apache 2.0.

License differences may affect how you can use these models in commercial or open-source projects.

DeepSeek-V4.1-Flash

MIT

Open weights

Hermes 3 405B

Apache 2.0

Open weights

Release Timeline

When each model was launched

DeepSeek-V4.1-Flash was released on 2026-09-10, while Hermes 3 405B was released on 2024-10-09.

DeepSeek-V4.1-Flash is 23 months newer than Hermes 3 405B.

DeepSeek-V4.1-Flash

Sep 10, 2026

2 days ago

1.9yr newer
Hermes 3 405B

Oct 9, 2024

1.9 years ago

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

DeepSeek-V4.1-Flash is available from Fireworks, DeepInfra, DeepSeek, Novita. Hermes 3 405B is available from DeepInfra.

DeepSeek-V4.1-Flash

fireworks logo
Fireworks
Input Price:Input: $0.22/1MOutput Price:Output: $0.66/1M
deepinfra logo
Deepinfra
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
deepseek logo
DeepSeek
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M
novita logo
Novita
Input Price:Input: $0.30/1MOutput Price:Output: $1.20/1M

Hermes 3 405B

deepinfra logo
Deepinfra
Input Price:Input: $1.00/1MOutput Price:Output: $1.00/1M
* Prices shown are per million tokens

Outputs Comparison

Notice missing or incorrect data?Start an Issue discussion→

Judge for yourself.

Run your own prompts against DeepSeek-V4.1-Flash and Hermes 3 405B side-by-side, then vote on the output you prefer.

DeepSeek-V4.1-Flash
✓ Preferred
Hermes 3 405B
Open in Playground

FAQ

Common questions about DeepSeek-V4.1-Flash vs Hermes 3 405B.

Which is better, DeepSeek-V4.1-Flash or Hermes 3 405B?

DeepSeek-V4.1-Flash leads the LLM Stats Score 51.8 to 4.3. DeepSeek-V4.1-Flash is made by DeepSeek and Hermes 3 405B is made by Nous Research. The best choice depends on your use case — compare their capability indexes, individual benchmarks, pricing, and limits above.

How does DeepSeek-V4.1-Flash compare to Hermes 3 405B in benchmarks?

DeepSeek-V4.1-Flash scores CodeForces: 100.0%, GPQA: 90.9%, Terminal-Bench 2.1: 90.6%, BabyVision: 89.6%, CyberGym: 88.1%. Hermes 3 405B scores HellaSwag: 90.2%, MT-Bench: 89.3%, BoolQ: 88.9%, Winogrande: 86.3%, ARC-E: 86.2%.

Is DeepSeek-V4.1-Flash cheaper than Hermes 3 405B?

DeepSeek-V4.1-Flash is 4.5x cheaper for input tokens. DeepSeek-V4.1-Flash costs $0.22/M input and $0.66/M output via fireworks. Hermes 3 405B costs $1.00/M input and $1.00/M output via deepinfra.

What are the context window sizes for DeepSeek-V4.1-Flash and Hermes 3 405B?

DeepSeek-V4.1-Flash supports 1.0M tokens and Hermes 3 405B supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between DeepSeek-V4.1-Flash and Hermes 3 405B?

Key differences include LLM Stats Score (51.8 vs 4.3), context window (1.0M vs 131K), input pricing ($0.22 vs $1.00/M), multimodal support (yes vs no), licensing (MIT vs Apache 2.0). See the full comparison above for benchmark-by-benchmark results.

Who makes DeepSeek-V4.1-Flash and Hermes 3 405B?

DeepSeek-V4.1-Flash is developed by DeepSeek and Hermes 3 405B is developed by Nous Research.

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