Best NanoGPT Models for Roleplay and Creative Writing
i tested every major model on NanoGPT for roleplay and creative writing. some were amazing. some were terrible. most "best model" guides just parrot the marketing - i actually sat down and ran 50+ message sessions with each model in SillyTavern. here's what actually works.
tl;dr: Claude 3.5 Sonnet is the best roleplay model on NanoGPT, maintaining character consistency for 100+ messages with the best dialogue and emotional range. GPT-4o is the reliable runner-up. for budget RP, DeepSeek V3 costs $0.04-0.08 per 50-message session.
Key Takeaways:
- Claude 3.5 Sonnet maintained a complex villain character consistently for 100+ messages in SillyTavern testing
- DeepSeek V3 delivers decent roleplay quality at $0.04-0.08 per 50-message session, 5-10x cheaper than Claude
- Mistral Large handles NSFW roleplay with only 5-10% refusal rate vs Gemini's 60-70% refusal rate
👉 Get NanoGPT with 5% discount - access all these models through one API.
how i tested
i didn't just ask "write me a story." i ran structured tests across real roleplay scenarios.
test scenarios
short answer: six scenarios: character consistency, dialogue quality, scene description, emotional range, NSFW capability, and long-context memory.
- character consistency - does the model stay in character over 50+ messages?
- dialogue quality - does speech sound natural and distinct?
- scene description - are environments vivid and consistent?
- emotional range - can the model portray complex emotions?
- NSFW capability - does the model handle mature themes without constant refusals?
- long-context memory - does it remember details from 20+ messages ago?
models tested
short answer: Claude 3.5 Sonnet, GPT-4o, GPT-4o-mini, Claude 3 Haiku, Mistral Large, Gemini 1.5 Pro, Llama 3 70B, DeepSeek V3.
- Claude 3.5 Sonnet
- GPT-4o
- GPT-4o-mini
- Claude 3 Haiku
- Mistral Large
- Gemini 1.5 Pro
- Llama 3 70B
- DeepSeek V3
each model was tested with the same character card, world info, and opening scenario in SillyTavern. 50 messages minimum per test.
results: best models for roleplay
overall rankings
short answer: Claude 3.5 Sonnet scored 5/5 across all categories. GPT-4o scored 4/5. Mistral Large scored 3/5 but is much cheaper.
| Model | Character | Dialogue | Scene | Emotion | Memory | Overall |
|---|---|---|---|---|---|---|
| Claude 3.5 Sonnet | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | Best |
| GPT-4o | ⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | Great |
| Mistral Large | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | Good |
| DeepSeek V3 | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | Decent |
| Llama 3 70B | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐ | Okay |
| GPT-4o-mini | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐ | ⭐⭐ | Mediocre |
| Claude 3 Haiku | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ | ⭐⭐ | ⭐⭐ | Mediocre |
| Gemini 1.5 Pro | ⭐⭐ | ⭐⭐ | ⭐⭐⭐ | ⭐⭐ | ⭐⭐⭐⭐ | Poor for RP |
detailed breakdown
short answer: Claude 3.5 maintained character for 100+ messages. GPT-4o breaks character every 30-40 messages. Mistral is decent for casual RP.
Claude 3.5 Sonnet - the RP king
this model is eerily good at roleplay. it maintains character voice across long conversations, writes vivid scene descriptions, and handles emotional nuance that other models miss.
in my test, it kept a complex villain character consistent for 100+ messages. the character's speech patterns, motivations, and moral ambiguity stayed intact. no other model came close.
downside: it's the most expensive option at ~$3/$15 per million tokens.
GPT-4o - the reliable choice
GPT-4o is great at dialogue and natural speech. characters feel real. it occasionally breaks character in long conversations (every 30-40 messages), but recovers quickly with a gentle nudge.
it's better at action-heavy scenes than Claude. fight scenes, chase sequences, physical descriptions are more dynamic.
Mistral Large - the budget pick
surprisingly good for the price. characters are consistent enough for casual RP. dialogue is natural. the main weakness is scene descriptions - they tend to be generic and lack the vivid detail of Claude or GPT-4o.
if you're doing light RP and don't want to spend much, Mistral Large is solid.
check our SillyTavern setup guide for connecting these models.
best models for creative writing
creative writing is different from roleplay. you need prose quality, narrative structure, and stylistic control.
writing quality rankings
short answer: Claude 3.5 Sonnet rated 5/5 for prose and style control. GPT-4o rated 4/5. both fast, but Claude costs more.
| Model | Prose | Structure | Style Control | Speed | Cost |
|---|---|---|---|---|---|
| Claude 3.5 Sonnet | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐⭐ | Fast | $$$ |
| GPT-4o | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | Fast | $$ |
| Gemini 1.5 Pro | ⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ | Medium | $$ |
| Mistral Large | ⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ | Fast | $$ |
| DeepSeek V3 | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ | Fast | $ |
| Llama 3 70B | ⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ | Medium | $ |
writing task recommendations
| Task | Best Model | Why |
|---|---|---|
| Novel writing | Claude 3.5 Sonnet | Best prose, consistent voice |
| Short stories | GPT-4o | Dynamic pacing, strong dialogue |
| Poetry | Claude 3.5 Sonnet | Better rhythm and word choice |
| Blog posts | GPT-4o-mini | Fast, cheap, good enough |
| Technical writing | GPT-4o | Clear, structured |
| Marketing copy | Claude 3.5 Sonnet | Better persuasion, natural tone |
| Script writing | GPT-4o | Better dialogue formatting |
see our best models for writing guide for more detail.
NSFW and mature content
let's address the elephant in the room. many people use SillyTavern specifically for NSFW roleplay. here's how models handle it.
NSFW capability
short answer: Mistral Large: 5-10% refusal. Claude 3.5 with jailbreak: 10-20%. GPT-4o with jailbreak: 20-30%. Gemini: 60-70%. avoid Gemini for NSFW.
| Model | Handles NSFW | Quality | Refusal Rate |
|---|---|---|---|
| Claude 3.5 Sonnet | Yes (with jailbreak) | Excellent | 10-20% |
| GPT-4o | Yes (with jailbreak) | Good | 20-30% |
| Mistral Large | Yes | Good | 5-10% |
| DeepSeek V3 | Yes | Decent | 5-10% |
| Llama 3 70B | Yes | Decent | 5-15% |
| GPT-4o-mini | Limited | Poor | 40-50% |
| Claude 3 Haiku | Limited | Poor | 30-40% |
| Gemini 1.5 Pro | Very limited | Poor | 60-70% |
important: refusal rates depend heavily on your jailbreak prompt and character card. these numbers are based on my tests with standard community jailbreaks.
tips for NSFW RP
short answer: use a good community jailbreak, set author's notes, avoid Gemini, use Claude with jailbreak for best quality, Mistral as fallback.
- use a good jailbreak - the SillyTavern community maintains effective jailbreak prompts
- set up author's notes - use SillyTavern's author's note feature to reinforce the tone
- avoid Gemini - it's the most censored model family
- Claude with good jailbreak - gives the best NSFW quality when it works
- Mistral as fallback - less censored by default, decent quality
check our private SillyTavern API guide for privacy-focused setup.
cost optimization for RP
roleplay uses a lot of tokens. here's how to keep costs down.
token usage in RP
short answer: short RP: 5K-10K tokens per session. medium: 15K-25K. long: 25K-50K. context size and message length drive costs.
| Message Length | Tokens per Message | 50-Message Session |
|---|---|---|
| Short (1-2 paragraphs) | 100-200 | 5,000-10,000 |
| Medium (3-4 paragraphs) | 300-500 | 15,000-25,000 |
| Long (5+ paragraphs) | 500-1000 | 25,000-50,000 |
cost per 50-message session
short answer: Claude 3.5: $0.08-0.80. GPT-4o: $0.05-0.50. Mistral Large: $0.03-0.30. DeepSeek V3: $0.01-0.15. pick based on quality needs.
| Model | Short RP | Medium RP | Long RP |
|---|---|---|---|
| Claude 3.5 Sonnet | $0.08-0.15 | $0.20-0.40 | $0.40-0.80 |
| GPT-4o | $0.05-0.10 | $0.12-0.25 | $0.25-0.50 |
| Mistral Large | $0.03-0.06 | $0.08-0.15 | $0.15-0.30 |
| DeepSeek V3 | $0.01-0.03 | $0.04-0.08 | $0.08-0.15 |
| Llama 3 70B | $0.02-0.04 | $0.05-0.10 | $0.10-0.20 |
my RP cost strategy
short answer: DeepSeek V3 for casual RP at $0.04-0.08 per session. switch to Claude for important scenes. GPT-4o as middle ground.
- use DeepSeek V3 for casual RP - $0.04-0.08 per session is hard to beat
- switch to Claude for important scenes - quality matters for key moments
- use GPT-4o as the middle ground - good quality, reasonable cost
- limit context window - don't carry 100+ message histories
- set max tokens - cap responses at 500-800 tokens for most RP
with this strategy, i spend about $5-8/month on daily RP sessions. see our pricing guide for the full breakdown.
SillyTavern configuration for best results
recommended SillyTavern settings
short answer: context 8192-16384, max tokens 500-800, temperature 0.8-1.0, frequency penalty 0.1-0.3, presence penalty 0.1-0.2.
| Setting | Value | Why |
|---|---|---|
| Context Size | 8192-16384 | Balance quality and cost |
| Max Tokens | 500-800 | Prevents rambling |
| Temperature | 0.8-1.0 | More creative responses |
| Top-P | 0.9 | Good diversity |
| Frequency Penalty | 0.1-0.3 | Reduces repetition |
| Presence Penalty | 0.1-0.2 | Encourages new topics |
system prompt tips
short answer: keep system prompts focused. avoid overly long prompts that eat context window and cost more tokens.
keep your system prompt focused:
You are {{char}}. Stay in character at all times.
Write vivid, descriptive responses.
Never break character or acknowledge being an AI.
Respond in third person for actions, first person for dialogue.
avoid overly long system prompts - they eat into your context window and cost more tokens.
my recommendation
for serious RP: Claude 3.5 Sonnet. yes, it's expensive. but the quality difference is noticeable.
for casual RP: Mistral Large or DeepSeek V3. good enough quality, much cheaper.
for mixed use: GPT-4o. reliable across all RP scenarios, reasonable cost.
avoid for RP: Gemini 1.5 Pro, GPT-4o-mini, Claude 3 Haiku.
Last updated: July 2026
Related Articles
- NanoGPT SillyTavern Setup - connect NanoGPT to SillyTavern
- Private SillyTavern API - privacy-focused RP setup
- NanoGPT Pricing - cost breakdown
- All NanoGPT Models - complete model list
- Best Models for Writing - creative writing focus
- NanoGPT Privacy Review - data handling for RP users
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