Mistral Nemo vs Hermes 4 405B
Mistral Nemo costs 20.0x less per output token than Hermes 4 405B ($0.15 vs $3.00 per million). Updated October 22, 2026; no benchmark has tested both models yet.
- Coding
- No data
- Overall
- No data
- Output $/M
- $0.15
- Coding
- No data
- Overall
- No data
- Output $/M
- $3.00
Mistral Nemo or Hermes 4 405B: which to pick
Neither model has a coding score yet, so the two cannot be ranked on coding.
Pick Mistral Nemo for output tokens 20.0x cheaper ($0.15 vs $3.00 per million).
No benchmark has tested both yet. Mistral Nemo has results on Epoch Capabilities Index, MMLU and DTBench; Hermes 4 405B on AA Intelligence Index and Kagi LLM Benchmark. Compare them on price and context instead.
Which one for your work
Each card is decided by one number both models carry. Where only one has it, the card says so and makes no call.
Coding
Vibe Coding Index, six public coding benchmarks
No call
Neither has a coding score yet.
One side not measured
Intelligence
AA Intelligence Index
No call
Only Hermes 4 405B has a AA Intelligence Index result, 7.5.
Directional only
Long documents
Listed context window
No call
Both take 131K tokens.
Listed by OpenRouter
Everyday cost
1K input + 500 output tokens
Mistral Nemo
Mistral Nemo $0.0002, Hermes 4 405B $0.0025 per turn.
List prices
At a glance
- Coding index
- Mistral Nemo not benchmarked, Hermes 4 405B not benchmarked.
- Widest category
- None yet: no category has been tested on both models.
- Widest single gap
- None yet: no benchmark has tested both models.
- Output price
- Mistral Nemo $0.15 against Hermes 4 405B $3.00 per million output tokens, 20.0x apart.
- Context window
- Both take 131K tokens.
Benchmark by benchmark
Every board either model has a result on, a category to a fold; bars are each result on a 0 to 100 scale. Only one model is measured on each, so no row names a leader.
IntelligenceDirectional onlyPublic boards, shown as published, kept out of the index2 boards measured
| Benchmark | Mistral Nemo | Hermes 4 405B | Leader |
|---|---|---|---|
| AA Intelligence Index | Not measured | 7.5 | Only Hermes 4 405B measured |
| Epoch Capabilities Index | 118.7 | Not measured | Only Mistral Nemo measured |
ReasoningDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Mistral Nemo | Hermes 4 405B | Leader |
|---|---|---|---|
| Kagi LLM Benchmark | Not measured | 55.8% | Only Hermes 4 405B measured |
| Neither model has a result on the other 21 boards here | |||
KnowledgeDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Mistral Nemo | Hermes 4 405B | Leader |
|---|---|---|---|
| MMLU | 65.3% | Not measured | Only Mistral Nemo measured |
| Neither model has a result on the other 17 boards here | |||
GeneralDirectional onlyPublic boards, shown as published, kept out of the index1 board measured
| Benchmark | Mistral Nemo | Hermes 4 405B | Leader |
|---|---|---|---|
| DTBench | 48.6% | Not measured | Only Mistral Nemo measured |
| Neither model has a result on the other 45 boards here | |||
What each workload costs
Three fixed token mixes at each model's listed price, so per-token rates become a bill.
Chat turn
1K input + 500 output tokens
Mistral Nemo costs less
Repository review
50K input + 3K output tokens
Mistral Nemo costs less
Agent loop
200K input + 10K output tokens
Mistral Nemo costs less
Listed OpenRouter rates, without cache or batch discounts. A workload that does not fit a model's context window would need splitting.
Specification differences
The leading value in a row is marked; a row with a missing value names no leader. Our two rows are marked in red.
| Specification | Mistral Nemo | Nous Hermes 4 405B |
|---|---|---|
| Maker | Mistral AI | Nous Research |
| Weights | Open weights | Open weights |
| Released | July 19, 2024 | August 26, 2025 |
| Context window | 131K | 131K |
| Input $/Mtok | $0.15 | $1.00 |
| Output $/Mtok | $0.15 | $3.00 |
| Coding index | Not benchmarked | Not benchmarked |
| Independent measurements behind it | 0 | 0 |
| Cost per solved task | Not computable | Not computable |
| Source | OpenRouter listing | OpenRouter listing |
Questions
Is Mistral Nemo better than Hermes 4 405B for coding?
Neither model has a coding score yet, so the two cannot be ranked on coding. Pick Mistral Nemo for output tokens 20.0x cheaper ($0.15 vs $3.00 per million).
Which is cheaper, Mistral Nemo or Hermes 4 405B?
Mistral Nemo costs $0.15 per million input tokens and $0.15 per million output tokens; Hermes 4 405B costs $1.00 and $3.00. Cost per solved task is known for neither of them.
Which has the bigger context window, Mistral Nemo or Hermes 4 405B?
Neither: both take 131K tokens.
Has any benchmark tested both Mistral Nemo and Hermes 4 405B?
No benchmark has tested both yet. Mistral Nemo has results on Epoch Capabilities Index, MMLU and DTBench; Hermes 4 405B on AA Intelligence Index and Kagi LLM Benchmark. Compare them on price and context instead. Data as of October 22, 2026.