# Workspace Model Limitations By using nexos.ai, you agree to the prompt limits per user and timeframe which are in place to ensure all users have access to all models at all times. These limits prevent any single user from monopolizing resources, helping maintain reliability and availability for everyone. If you exceed the limits provided below, you can switch to another model. These limits apply to each specific model:

Category 1 - Unlimited (with spam protection)

Codestral
DeepSeek 3.2
Devstral 2
GLM 5
GLM 5.1
GPT 3.5 Turbo
GPT 4.1 mini
GPT 4.1 nano
GPT 4o mini
GPT 5 mini
GPT 5 nano
GPT 5.1 Codex mini
GPT 5.4 mini
GPT 5.4 nano
GPT OSS 120B
GPT OSS 20B
GPT-OSS 120b
Gemini 2.0 Flash
Gemini 2.0 Flash Lite
Gemini 2.5 Flash
Gemini 2.5 Flash Lite
Gemini 3 Flash Preview
Gemini 3.1 Flash Lite Preview
Grok 4 Fast
Grok 4 Fast Reasoning
Grok 4.1 Fast
Grok 4.1 Fast Reasoning
Grok 4.20
Grok 4.20 Reasoning
Grok 4.3
Grok Code Fast
Kimi K2.5
Kimi K2.6
MiniMax M2.7
Mistral Large 3
Mistral Medium 3
Mistral Medium 3.1
Mistral Small 4
Nova 2 Lite
Nova Lite
Nova Pro
Step 3.5 Flash
Whisper 1
o3 mini
o4 mini

Category 2 - 200 messages / 3 hours

Claude Haiku 4.5
Cohere Command A
GPT 4.1
GPT 4o
GPT 5
GPT 5.1
GPT 5.1 Codex
GPT 5.1 Codex Max
GPT 5.2
GPT 5.3 Codex
GPT 5.3 Instant
GPT Image 1 mini
Gemini 2.5 Pro
Gemini 3.1 Pro Preview
Mistral Medium 3.5
Nova Premier
o3

Category 3 - 100 messages / 3 hours

Claude Opus 4
Claude Opus 4.1
Claude Opus 4.5
Claude Opus 4.6
Claude Opus 4.7
Claude Sonnet 4
Claude Sonnet 4.5
Claude Sonnet 4.6
FLUX 1.1 Pro
GPT 4 Turbo
GPT 5.2 Pro
GPT 5.4
GPT 5.5
GPT Image 1
GPT Image 1.5
Grok 3
Grok 4
Imagen 4
Imagen 4 Fast
Imagen 4 Ultra
o1
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