LLM Comparison
GPT-6 Luna vs Llama Guard 3 8B
Side-by-side specs, pricing & capabilities · Updated September 2026
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2/6 modelsSame tier:
| Organization | ||
| OpenTools Score | ||
| Family | GPT-6 | Llama |
| Status | Current | Current |
| Release Date | Sep 2026 | Feb 2025 |
| Context Window | 1.1M tokens | 131K tokens |
| Input Price | $0.10/M tokens | $0.48/M tokens |
| Output Price | $0.50/M tokens | $0.03/M tokens |
| Pricing Notes | OpenAI standard API, USD per million tokens for prompts up to 272K input tokens: $0.10 input, $0.01 cached input, $0.125 cache writes, $0.50 output. Above 272K input tokens, the full request costs 2x input/cache and 1.5x output. Batch/Flex cost 50% of Standard; Fast costs 2x; regional processing adds 10% where available. Reasoning output tokens are charged at output rates. | — |
| Capabilities | textvisionreasoningcodingtool-uselong-contextcontext-caching | textcode |
| Training Cutoff | 2026-05-18 | — |
| Max Output | 128K tokens | 100 tokens |
| API Identifier | gpt-6-luna | meta-llama/llama-guard-3-8b |
| Benchmarks | ||
| Artificial Analysis Intelligence Index v4.3.2 | 37.2559686869738artificial-analysis | — |
| LG3 English safety F1 | — | 93.9meta |
| LG3 English safety AUPRC | — | 98.5meta |
| LG3 tool-use safety F1 | — | 85.6meta |
| LG3 code-interpreter safety F1 | — | 88.5meta |
| View GPT-6 Luna | View Llama Guard 3 8B | |
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| Model | Input | Output | Total / mo | vs Best |
|---|---|---|---|---|
| GPT-6 LunaCheapest | $0.10 | $0.25 | $0.35 | — |
| Llama Guard 3 8B | $0.48 | $0.02 | $0.50 | +41% |
OpenAI
GPT-6 Luna
GPT-6 Luna is OpenAI's efficient reasoning model for focused, high-volume tasks. It accepts text and images, produces text, supports a 1,050,000-token context window and 128,000 output tokens, and is available through the Responses and Chat Completions APIs under the exact gpt-6-luna identifier.
Meta
Llama Guard 3 8B
Llama Guard 3 8B is a Meta safety-classification model for prompt and response moderation across English, multilingual, search, and code-interpreter use cases.
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