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Llama Guard 3 8B vs Meta Llama3 1 405b Instruct
This page is context-first: how much text each model can take in one request. Full specs adds capabilities and limits; the pricing matrix below is only about $/million tokens from hosts that list both models.
Model
Meta Llama3 1 405b Instruct
Context window
128K
128,000 tokens · ~96K words
Context window · side by side
Bar length is relative to the larger of the two windows (100% = max of this pair). This is not pricing.
Llama Guard 3 8B has about 1× the context window of the other in this pair.
Llama Guard 3 8B has 2% more context capacity (131K vs 128K tokens). Llama Guard 3 8B is 98% cheaper on input.
Quick verdicts
Short takeaways — validate with your own workloads.
Long document processing
Use Llama Guard 3 8B. Its 131K context fits entire documents without chunking (vs 128K).
RAG / high-volume retrieval
Use Llama Guard 3 8B. Input tokens are 98% cheaper — critical when sending large retrieved contexts.
Long output (reports, code files)
Use Llama Guard 3 8B. Its 131K max output lets you generate complete artifacts in one request.
Full specs
Context, output, capabilities, and dates. Green highlights the favorable value where we compute a winner.
| Spec | Llama Guard 3 8B | Meta Llama3 1 405b Instruct |
|---|---|---|
| Context window | 131,072 tokens (131K) | 128,000 tokens (128K) |
| Max output tokens | 131,072 tokens (131K) | 4,096 tokens (4K) |
| Speed tier | Fast | Deep |
| Vision | No | No |
| Function calling | No | Yes |
| Extended thinking | No | No |
| Prompt caching | No | No |
| Batch API | No | No |
| Release date | Feb 2025 | N/A |
Pricing matrix
Dollar rates only: hosts that list both models, per 1M tokens. For how much text fits, use the context section above — not this table.
| Provider | Llama Guard 3 8B in | Llama Guard 3 8B out | Meta Llama3 1 405b Instruct in | Meta Llama3 1 405b Instruct out |
|---|---|---|---|---|
| Aws Bedrock | — | — | $5.32/M | $16.00/M |
| Deepinfra | $0.055/M | $0.055/M | — | — |
| Fireworks | $0.200/M | $0.200/M | — | — |
| Nebius | $0.020/M | $0.060/M | — | — |
Frequently asked questions
Powered by Mem0
Use a smaller model.
Get better results.
Mem0 gives your AI long-term memory so you stop re-sending context on every call. That means you can use a smaller, faster, cheaper model — and still get better answers.
Example: a multi-turn chat session
80% less to send — works with any model