Nous Hermes vs Llama vs Mistral AI vs Zephyr
A side-by-side look at scores, pricing and features — with RECATOOLS' ASEAN-aware verdict for each.
Nous Hermes
Nous Research's open Hermes models — steerable, minimally filtered
Visit
|
Llama
Meta's open-weight LLM family — Llama 4 landed, Behemoth didn't
Visit
|
Mistral AI
European frontier-model lab
Visit
|
Zephyr
HuggingFace's instruction-tuned open-source chat model — direct, helpf...
Visit
|
|
|---|---|---|---|---|
| RECATOOLS Score | 6.8 / 10 | 8.3 / 10 | 8.4 / 10 | 5.8 / 10 |
| Capability | ||||
| Value for money | ||||
| Ease of use | ||||
| ASEAN readiness | ||||
| API quality | ||||
| Pricing | Open Source | Open Source | Freemium | Open Source |
| Free tier | Fully free | Free model weights for download and local use | Free open-weight models for self-hosting | Fully free |
| Paid from | — | — | $0.14/1M tokens (Mistral Small via API) | — |
| Has API | ✓ | ✓ | ✓ | ✓ |
| Open source | ✓ | ✓ | ✓ | ✓ |
| Free to use | ✓ | ✓ | ✓ | ✓ |
| Users | 500k+ downloads | 10m+ downloads | 500k+ API users | 500k+ downloads |
| Founded | 2023 | 2023 | 2023 | 2023 |
| Maker | Nous Research Community | Meta Platforms | Arthur Mensch, Guillaume Lample, Timothee Lacroix | Hugging Face |
| Verdict | The Hermes series is the closest thing open-source AI has to a house brand: Llama- and Mistral-based fine-tunes known for strong instruction-following, steerability and refusal rates far below the big labs' defaults. Her... |
Llama is still the backbone of the open-weight LLM ecosystem — Llama 2 and 3 built it, and Llama 4 (Scout and Maverick, shipped April 2025) kept it going, with a huge footprint on Hugging Face, Ollama, Together AI and Fi... |
Mistral is the strongest European alternative to the US labs, and its open-weight releases are the reason: Mistral Large 3 (December 2025) ships as a 675B-parameter MoE under Apache 2.0 with a 256K context window, Medium... |
Zephyr-7B-beta is a research-grade open model from HuggingFace's H4 team: a Mistral-7B base fine-tuned with distilled DPO that punched well above its weight on chat benchmarks when released, and remains a clean, permissi... |
| Full review → | Full review → | Full review → | Full review → |
Comparisons cover up to 4 tools. Scores are RECATOOLS editorial assessments; verify current pricing on each vendor's site.