Llama 3.1 8B Instant costs $0.050 per million input tokens and
$0.080 per million output tokens on Groq. It ranks #3 cheapest of 76
LLM APIs we track on a blended price of $0.058 per million tokens.
Input
$0.050
per 1M tokens
Output
$0.080
per 1M tokens
Cached input
—
no caching discount listed
Blended
$0.058
per 1M · 3 input : 1 output
What Llama 3.1 8B Instant costs for real workloads
| Workload | Estimated cost |
|---|---|
| Support chatbot: 100K messages | $6.40 |
| RAG search: 10K queries with 6K-token context | $3.40 |
| Batch summarization: 1,000 long documents | $1.08 |
| Coding agent: 100 tasks, 50K context x 20 turns | $5.16 |
Chatbot: 800 input + 300 output tokens per message. RAG: 6,000 + 500 per query. Summarization: 20,000 + 1,000 per document. Coding agent: 20 turns per task over a 50K-token context, with 95% of input served from cache where the model supports it.
Llama 3.1 8B Instant vs similarly priced models
| Model | Provider | Input / 1M | Output / 1M | Cached / 1M | Blended |
|---|---|---|---|---|---|
| Llama Prompt Guard 2 22M | Groq | $0.030 | $0.030 | — | $0.030 |
| Prompt Guard 2 86M | Groq | $0.040 | $0.040 | — | $0.040 |
| Llama 3.1 8B Instant | Groq | $0.050 | $0.080 | — | $0.058 |
| Ministral 3 3B | Mistral AI | $0.10 | $0.10 | $0.010 | $0.10 |
| GPT OSS 20B | Groq | $0.075 | $0.30 | — | $0.13 |
| GPT OSS Safeguard 20B | Groq | $0.075 | $0.30 | — | $0.13 |
| Safety GPT OSS 20B | Groq | $0.075 | $0.30 | — | $0.13 |
| Ministral 3 8B | Mistral AI | $0.15 | $0.15 | $0.015 | $0.15 |
| Llama 4 Scout | Groq | $0.11 | $0.34 | — | $0.17 |
Prices last checked November 8, 2026 · re-checked twice a week from official pricing pages and APIs · How we collect prices
Other Groq models
Llama 3.1 8B Instant pricing FAQ
How much does the Llama 3.1 8B Instant API cost?
Llama 3.1 8B Instant costs $0.050 per million input tokens and $0.080 per million output tokens on Groq. Prices as of November 8, 2026.
How much does Llama 3.1 8B Instant cost for 1,000 requests?
At 1,000 input and 500 output tokens per request, 1,000 requests cost about $0.09.
Is Llama 3.1 8B Instant expensive compared to other LLM APIs?
It ranks #3 cheapest of 76 models we track on a blended price (3 input tokens per output token) of $0.058 per million tokens.
Picking a model for production?
Describe your workload and the Planner estimates monthly token spend across every model we track.