GPT-6 Luna Pro vs Llama Guard 4 12B
| Signal | GPT-6 Luna Pro | Delta | Llama Guard 4 12B |
|---|---|---|---|
Capabilities | 100 | +67 | |
Pricing | 100 | 0 | |
Context window size | 96 | +13 | |
Recency | 100 | +60 | |
Output Capacity | 82 | +14 | |
| Overall Result | 4 wins | of 5 | 1 wins |
Score History
40
current score
Tied
right now
40
current score
GPT-6 Luna Pro
OpenAI
Llama Guard 4 12B
Meta
Llama Guard 4 12B saves you $8.00/month
That's $96.00/year compared to GPT-6 Luna Pro at your current usage level of 100K calls/month.
| Metric | GPT-6 Luna Pro | Llama Guard 4 12B | Winner |
|---|---|---|---|
| Overall Score | 40 | 40 | -- |
| Rank | #234 | #388 | GPT-6 Luna Pro |
| Quality Rank | #234 | #388 | GPT-6 Luna Pro |
| Adoption Rank | #234 | #388 | GPT-6 Luna Pro |
| Parameters | -- | 12B | -- |
| Context Window | 1050K | 164K | GPT-6 Luna Pro |
| Pricing | $0.10/$0.50/M | $0.18/$0.18/M | -- |
| Signal Scores | |||
| Capabilities | 100 | 33 | GPT-6 Luna Pro |
| Pricing | 100 | 100 | Llama Guard 4 12B |
| Context window size | 96 | 83 | GPT-6 Luna Pro |
| Recency | 100 | 40 | GPT-6 Luna Pro |
| Output Capacity | 82 | 67 | GPT-6 Luna Pro |
Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.
Scores 40/100 (rank #234), placing it in the top 20% of all 290 models tracked.
Scores 40/100 (rank #388), placing it in the top -33% of all 290 models tracked.
With only a 0-point gap, these models are in the same performance tier. The practical difference in output quality is minimal - your choice should depend on pricing, latency requirements, and specific feature needs.
Choose GPT-6 Luna Pro when you need:
- Processing long documents or large codebases (1050K token context)
- Agentic applications using tool/function calling
- Step-by-step reasoning and chain-of-thought problem solving
Choose Llama Guard 4 12B when you need:
- High-volume production workloads where API costs must be minimized
- Self-hosted deployments where you need full control over the model
Llama Guard 4 12B offers 40% better value per quality point. At 1M tokens/day, you'd spend $5.40/month with Llama Guard 4 12B vs $9.00/month with GPT-6 Luna Pro - a $3.60 monthly difference.
Both models have comparable response speeds. For most applications, the latency difference is negligible.
When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.
Code generation & review
Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring
Customer support chatbot
Suitable for user-facing chat with competitive response times. Llama Guard 4 12B also offers lower per-token costs for high-volume support
Long document analysis
Larger context window (1050K tokens) can process longer documents, contracts, and research papers in a single pass
Batch data extraction
Lower output pricing ($0.18/M) reduces costs when processing thousands of records daily
Creative writing & content
Higher overall composite score (40/100) correlates with better nuance, coherence, and style in long-form content
Image understanding & OCR
Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly
GPT-6 Luna Pro and Llama Guard 4 12B are extremely close in overall performance (only 0 points apart). Your best choice depends entirely on which specific strengths matter most for your use case.
By Use Case
Best for Quality
GPT-6 Luna Pro
Marginally better benchmark scores; both are excellent
Best for Cost
Llama Guard 4 12B
40% lower pricing; better value at scale
Best for Reliability
GPT-6 Luna Pro
Higher uptime and faster response speeds
Best for Prototyping
GPT-6 Luna Pro
Stronger community support and better developer experience
Best for Production
GPT-6 Luna Pro
Wider enterprise adoption and proven at scale
by OpenAI
- Choose for Quality - Marginally better benchmark scores; both are excellent
- Choose for Reliability - Higher uptime and faster response speeds
- Choose for Prototyping - Stronger community support and better developer experience
- Choose for Production - Wider enterprise adoption and proven at scale
| Capability | GPT-6 Luna Pro | Llama Guard 4 12B |
|---|---|---|
| Vision (Image Input) | ||
| Function Callingdiffers | ||
| Streaming | ||
| JSON Modediffers | ||
| Reasoningdiffers | ||
| Web Searchdiffers | ||
| Image Output |
GPT-6 Luna Pro
OpenAI
Llama Guard 4 12B
Meta
Llama Guard 4 12B saves you $0.2400/month
That's 31% cheaper than GPT-6 Luna Pro at 1,000 tokens/request and 100 requests/day.
Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.
| Parameter | GPT-6 Luna Pro | Llama Guard 4 12B |
|---|---|---|
| Context Window | 1.1M | 164K |
| Max Output Tokens | 128,000 | 16,384 |
| Open Source | No | Yes |
| Created | Sep 22, 2026 | Apr 30, 2025 |