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Qwen: Qwen 3 8B

qwen3-8b

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Qwen 3 8B costs $0.611 per million input tokens and $0.611 per million output tokens, supports 41K context, and is available through the OpenAI-compatible API.

Qwen 3 8B is a 8B model. Supports switching between thinking and non thinking: trigger thinking with /think and /no_think anywhere in a prompt or system message to toggle chain-of-thought reasoning.

Modalities

Text → Text

Input / output price

$0.611 / $0.611 per 1M

Context

41K · max output 33K

Capabilities

Tool callingOpen weights

Pricing

Billed per token actually used and deducted from your credits.

ItemUSD per 1M tokens
Input$0.611
Output$0.611
Cached input$0.305

Calculator

Drag the sliders to estimate what this model will cost.

Per request
$0.00232
Per day
$1.16
Per month (30 days)
$34.83

Qwen 3 8B: input $0.611/M · output $0.611/M · cached input $0.3055/M

Request with these settings
curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model": "qwen3-8b", "max_tokens": 800,
       "messages": [{"role": "user", "content": "…"}]}'

Code samples

OpenAI-compatible. Set the base URL to https://api.geniusrelaygpt.com/v1 and the model to qwen3-8b.

curl https://api.geniusrelaygpt.com/v1/chat/completions \
  -H "Authorization: Bearer $API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "qwen3-8b",
    "stream": true,
    "messages": [{"role": "user", "content": "Hello"}]
  }'

Use it in a client: Cursor · Cline · SillyTavern · Codex

Parameters

Common OpenAI parameters can be passed as-is.

temperaturetop_pmax_tokensstreamstoppresence_penaltyfrequency_penaltyseed

FAQ

How is Qwen 3 8B billed?
Input is $0.611 and output is $0.611 per million tokens; cached input is $0.305. The charge for every request is listed in Usage Logs in the console.
How long is the context window?
41K tokens. In a long conversation every turn is billed for the full input, so keep the history under control.
Does it support streaming?
Yes. Add "stream": true to the request to receive server-sent events in the OpenAI format.
Qwen 3 8B API pricing · GeniusRelay