Nous: Hermes 3 70B Instruct
Hermes 3 is a generalist language model with many improvements over [Hermes 2](/models/nousresearch/nous-hermes-2-mistral-7b-dpo), including advanced agentic capabilities, much better roleplaying, reasoning, multi-turn conversation, long context coherence, and improvements across the...
Anyone in the Space can @-mention Nous: Hermes 3 70B Instruct with the team's shared context - pooled credits, one chat, one memory.
Starter is free forever - 1 Space, 100 credits/month, 1 MCP. No card.
Verdict
Best for
- Function calling with structured JSON output
- Long-context document analysis under budget
- Instruction-following for internal tooling
- Cost-sensitive agentic workflows
- Reasoning tasks where GPT-4 feels overpriced
Strengths
The $0.70/Mtok symmetric pricing makes this one of the most affordable 70B models available. The 131K context window exceeds most competitors in this price tier, letting you process full codebases or long reports in a single call. Nous Research's Hermes fine-tuning historically emphasizes function calling and structured output, making this a solid choice for tool use and API integrations where you need reliable JSON responses without paying Claude or GPT-4 rates.
Trade-offs
No public benchmarks means you're flying blind on comparative performance — we don't have MMLU, HumanEval, or MT-Bench scores to anchor expectations. Early adopters report solid performance on reasoning tasks, but you'll need to validate quality in your specific domain before committing. The symmetric input/output pricing is unusual; most models charge more for output, so if your use case generates long responses, you're paying more than the headline rate suggests.
Specifications
- Provider
- nousresearch
- Category
- llm
- Context length
- 131,072 tokens
- Max output
- 16,384 tokens
- Modalities
- text
- License
- proprietary
- Released
- 2024-08-18
Pricing
- Input
- $0.70/Mtok
- Output
- $0.70/Mtok
- Model ID
nousresearch/hermes-3-llama-3.1-70b
Per-token prices show what the model costs upstream. On Switchy your team draws from one shared org credit pool - one plan, one balance for everyone.
Team cost calculator
5 seats · 80 msgs/day
Switchy meters this against your org's shared credit pool - one plan, one balance for everyone.
Providers
| Provider | Context | Input | Output | P50 latency | Throughput | 30d uptime |
|---|---|---|---|---|---|---|
| nousresearch | 131k | $0.70/Mtok | $0.70/Mtok | — | — | — |
Performance
Benchmarks
Works well with
Top MCPs
Compatibility data comes from first-party telemetry; once we have enough co-usage signal, top MCPs for this model will appear here.
How Switchy teams use it
Starter prompts
Extract Structured Meeting Notes
Read this meeting transcript and extract: (1) decisions made, (2) action items with assigned owners, (3) open questions. Return as JSON with arrays for each category. Be precise about who owns each action item.Open in a Space →
Analyze Long-Form Contract
Review this contract and identify: (1) key obligations for each party, (2) termination clauses, (3) liability caps or indemnification terms, (4) any unusual or high-risk provisions. Summarize each in plain language.Open in a Space →
Generate API Integration Code
Write a Python function that calls the Stripe API to create a subscription, handles rate limiting with exponential backoff, and returns a structured result object. Include error handling for common failure modes.Open in a Space →
Compare Product Feature Sets
I'm comparing three project management tools. For each, list: (1) core features, (2) pricing tiers, (3) integration ecosystem, (4) best use case. Present as a comparison table with clear trade-offs.Open in a Space →
Debug Complex Logic Error
This function is supposed to calculate weighted averages but returns incorrect results. Walk through the logic step-by-step, identify where the calculation breaks, and explain the fix in plain language before showing corrected code.Open in a Space →
Example outputs
Illustrative - representative of the model's voice and quality, not literal recordings.
Review this Python function for potential bugs and suggest improvements. Focus on edge cases and performance: ```python def merge_sorted_lists(list1, list2): result = [] i = j = 0 while i < len(list1) and j < len(list2): if list1[i] < list2[j]: result.append(list1[i]) i += 1 else: result.append(list2[j]) j += 1 return result ```
The function has a critical bug: it doesn't handle remaining elements after one list is exhausted. When the while loop exits, elements from the longer list are lost. Add these lines after the loop: ```python result.extend(list1[i:]) result.extend(list2[j:]) ``` Performance-wise, repeated `len()` calls in the loop condition are inefficient. Cache the lengths beforehand. The function also lacks input validation—it'll fail on None or non-list inputs. Consider adding type hints and handling empty lists explicitly for clarity.
Demonstrates the model's code review capabilities with concrete bug identification and actionable fixes. The 131K token context window supports reviewing entire codebases in one session. However, without published benchmarks, it's unclear how this compares to specialized code models on complex refactoring tasks.
I'm preparing a technical presentation on distributed consensus algorithms. Explain the CAP theorem to an audience of senior engineers who understand databases but haven't studied distributed systems theory deeply. Include a practical example.
The CAP theorem states that distributed data stores can guarantee only two of three properties simultaneously: Consistency (all nodes see the same data), Availability (every request gets a response), and Partition tolerance (the system works despite network failures). In practice: Imagine your e-commerce platform spans three data centers. A network split isolates one center. You must choose: reject writes to maintain consistency (CP system, like traditional RDBMS clusters), or accept writes everywhere and resolve conflicts later (AP system, like Dynamo-style databases). You can't have both guaranteed consistency and guaranteed availability during the partition. Most modern systems choose AP with eventual consistency, using techniques like vector clocks or CRDTs to reconcile divergent states.
Shows the model's ability to translate complex technical concepts for specific audiences with appropriate depth. The instruction-following is precise—it targets the exact expertise level requested. The 70B parameter count likely contributes to nuanced explanations, though response latency at this size may impact interactive use cases.
Draft a professional email declining a vendor proposal. The vendor offered a monitoring solution at $50K/year, but we've decided to build in-house. Keep the relationship warm for future opportunities and be specific about our reasoning without oversharing internal strategy.
Subject: Re: Monitoring Solution Proposal Hi [Name], Thank you for the detailed proposal and the time your team invested in understanding our infrastructure needs. After careful evaluation, we've decided to develop our monitoring capabilities internally. This decision reflects our current engineering capacity and specific integration requirements rather than any shortcoming in your platform. We were impressed by your anomaly detection features and would welcome staying in touch as our needs evolve. I'll keep you updated on our infrastructure roadmap—there may be opportunities to collaborate in adjacent areas. Best regards, [Your name]
Illustrates the model's grasp of professional communication nuance—balancing honesty with diplomacy. The output matches the requested tone precisely without generic pleasantries. At $0.30 per million tokens for both input and output, the symmetric pricing makes this suitable for high-volume business writing tasks where input context matters as much as generation length.
Use-case deep-dives
When 128K context beats tool-calling for contract comparison work
A 4-person legal ops team needs to compare clauses across 15-20 vendor contracts every week. Hermes 3 70B's 131K token window fits roughly 100 pages of dense text in a single prompt, which means you can load all contracts at once and ask comparative questions without chaining tool calls or managing retrieval logic. At $0.30/Mtok symmetric pricing, a typical 80K-token analysis run costs $0.024 — cheap enough to run exploratory queries without budgeting friction. The model handles instruction-following well for extraction tasks (pull all indemnity clauses, flag non-standard terms), though you'll want to spot-check outputs against source text since we lack public accuracy benchmarks here. If your team runs more than 200 contract analyses per month, the cost advantage over GPT-4 Turbo starts to matter. Below that threshold, you're trading proven reliability for price.
Why this model works for mid-size company documentation search
A 40-person SaaS company wants to let employees ask questions against their Notion workspace (800 pages of onboarding docs, runbooks, and meeting notes). Hermes 3 70B handles the instruction-following needed to stay on-topic and cite sources, and the 128K context window means you can stuff 60-70 pages of retrieved content into each query without hitting limits. The symmetric $0.30/Mtok pricing is the real win here: most internal chat queries generate short answers, so you're paying the same rate for a 200-token response as you would for a 20K-token input. That's 3-5x cheaper than models with asymmetric pricing where output costs $1-2/Mtok. The lack of public benchmarks means you'll need to run a 2-week pilot with real employee questions before committing. If accuracy on your docs is below 85%, step up to a frontier model.
When cost-per-call matters more than cutting-edge performance
A community platform moderates 12,000 user comments daily, flagging spam, abuse, and off-topic posts. Hermes 3 70B costs $0.30/Mtok symmetric, which works out to roughly $0.0003 per moderation call (assuming 500 tokens in, 500 out). That's $3.60/day or $108/month for the full volume — about 60% cheaper than GPT-4o Mini at current rates. The model's instruction-following is strong enough to apply a 6-category moderation rubric consistently, and the 128K context window lets you include the last 50 comments from a thread for context-aware decisions. The trade-off: you're working without published safety benchmarks, so you'll need to manually review a random 2% sample daily to catch edge cases. If your moderation SLA allows 12-hour review windows and your volume stays under 20K calls/day, this is the cost-effective play.
Frequently asked
Is Hermes 3 70B good for general instruction following?
Yes. Hermes 3 70B is built specifically for instruction following and general-purpose tasks. The 70B parameter count gives it strong reasoning without the cost overhead of 400B+ models. It handles multi-turn conversations, summarization, and creative writing well. If you need a balanced model that follows complex prompts accurately, this is a solid choice.
Is Hermes 3 70B cheaper than GPT-4o or Claude Sonnet?
Yes, significantly. At $0.30 per million tokens for both input and output, Hermes 3 costs roughly 85% less than GPT-4o ($2.50/$10.00) and 90% less than Claude Sonnet 3.5 ($3.00/$15.00). The symmetric pricing also means you don't pay a premium for longer outputs. For high-volume workloads where GPT-4-class intelligence isn't required, the savings add up fast.
Can Hermes 3 70B handle 128K token contexts reliably?
The model supports 131,072 tokens, but real-world performance at max context depends on your use case. For retrieval-augmented generation or long document analysis, test with your actual data first. Models this size can struggle with needle-in-haystack tasks beyond 64K tokens. If you're routinely hitting 100K+ tokens, verify accuracy on your specific prompts before committing.
How does Hermes 3 70B compare to Llama 3.1 70B?
Both are 70B parameter models with 128K+ context windows, but Hermes 3 is fine-tuned by Nous Research specifically for instruction following and agentic workflows. Llama 3.1 70B is the base Meta model. Hermes 3 typically follows complex multi-step instructions more reliably and handles function calling better. If you need raw reasoning, they're comparable; for structured tasks, Hermes 3 edges ahead.
Should I use Hermes 3 70B for production chatbots?
Yes, if cost and instruction adherence matter more than cutting-edge reasoning. The symmetric $0.30 pricing makes it predictable for conversational apps with long exchanges. It won't match GPT-4o on nuanced logic or Claude on creative writing, but for customer support, internal tools, or high-volume chat where 90% accuracy is acceptable, it's a practical choice.