Metaopen weightsLlama 3.1 8B Instruct pricing
$0.05 per 1M input tokens and $0.08 per 1M output tokens. In real work that is 0.01¢ per chat answer and 0.09¢ to summarize a 20-page PDF.
What Llama 3.1 8B Instruct costs per task
Token counts estimated from a measured model of the same lab (Qwen3.8 Flash), rescaled by tokenizer. Reasoning tokens are billed as output.
| Task | Cost | Tokens used | Price rank | Basis |
|---|---|---|---|---|
| Answer a chat question | 0.01¢$0.13 / 1,000 | 87 in · 683 out · 909 reasoning | 8 of 336 | estimated |
| Reply to a customer email | <0.01¢$0.07 / 1,000 | 323 in · 97 out · 587 reasoning | 11 of 336 | estimated |
| Write a 1,500-word blog post | ≥0.13¢$1.29 / 1,000 | 103 in · 0 out · 16,000 reasoning | 31 of 336 | estimated |
| Write 10 product descriptions | ≥0.13¢$1.30 / 1,000 | 342 in · 0 out · 16,000 reasoning | 40 of 336 | estimated |
| Translate 1,000 words | 0.02¢$0.17 / 1,000 | 1,375 in · 1,156 out · 136 reasoning | 7 of 336 | estimated |
| Proofread one page (500 words) | 0.02¢$0.18 / 1,000 | 770 in · 665 out · 1,159 reasoning | 8 of 336 | estimated |
| Summarize a 20-page PDF | 0.09¢$0.86 / 1,000 | 13,015 in · 497 out · 2,141 reasoning | 17 of 336 | estimated |
| Extract data from an invoice | 0.02¢$0.20 / 1,000 | 497 in · 556 out · 1,617 reasoning | 9 of 336 | estimated |
| Analyze a 200-row spreadsheet | ≥0.16¢$1.60 / 1,000 | 6,306 in · 0 out · 16,000 reasoning | 11 of 336 | estimated |
| Answer from 5 retrieved documents (RAG) | 0.04¢$0.42 / 1,000 | 3,721 in · 966 out · 1,912 reasoning | 11 of 336 | estimated |
| Classify 100 support tickets | 0.07¢$0.75 / 1,000 | 1,451 in · 529 out · 7,879 reasoning | 19 of 336 | estimated |
| Review 500 lines of code | ≥0.15¢$1.52 / 1,000 | 4,835 in · 0 out · 16,000 reasoning | 14 of 336 | estimated |
| Write a SQL query | 0.02¢$0.22 / 1,000 | 175 in · 401 out · 2,225 reasoning | 11 of 336 | estimated |
| Run a 50-step coding agent | 6.6¢$65.76 / 1,000 | 2,241,975 in · 15,030 out · 80,850 reasoning | 28 of 336 | modeled |
Price at every provider
List prices per 1M tokens (input / output) at each host serving Llama 3.1 8B Instruct through OpenRouter today. Hosts can differ in quantization, context and speed.
| Provider | Input / output | Cached input | Context | Uptime |
|---|---|---|---|---|
 DeepInfrafp8 | $0.02 / $0.04 | - | 131K | 100% |
 Novitafp8 | $0.02 / $0.05 | - | 16K | 100% |
 Groqunknown | $0.05 / $0.08 | $0.025 | 131K | 100% |
| C CoreWeavebf16 | $0.22 / $0.22 | $0.22 | 131K | 100% |
| C Cloudflarefp8 | $0.15 / $0.29 | - | 32K | 100% |
Price history
First seen in our price history on Sep 5, 2024 at $0.055 input / $0.055 output. Since then the output price moved from $0.055 to $0.08 per 1M tokens (13 changes).
FAQ
How much does Llama 3.1 8B Instruct cost?
Llama 3.1 8B Instruct costs $0.05 per 1 million input tokens and $0.08 per 1 million output tokens, with cached input at $0.025 (list price on Oct 18, 2026). In practice one chat answer costs about 0.01¢ and summarizing a 20-page PDF about 0.09¢.
Where is Llama 3.1 8B Instruct cheapest?
Among 5 providers we track, the lowest list price today is at DeepInfra: $0.02 input and $0.04 output per 1M tokens.
Is the Llama 3.1 8B Instruct cost per task measured or estimated?
Estimated: Llama 3.1 8B Instruct was not run directly. Tokens come from Qwen3.8 Flash and are rescaled by the tokenizer of Meta. Real usage can differ.