Requests
52
observed on LLM7
chat model
gpt-5.3-codex-spark
gpt-5.3-codex-spark is a chat model available through the LLM7 API. It supports text input, tool calling, streaming, JSON mode, reasoning. It provides a 400,000 tokens context window. It currently costs $0.36 USD input and $2.81 USD output per 1M tokens.
gpt-5.3-codex-sparkGet an API keyCurrent price
Simple, pay-as-you-go pricing
$0.36 USD input and $2.81 USD output per 1M tokens
Cost calculator
Adjust the volume to see an instant estimate at the current public price.
01M
Input estimate
$0.0036
Output estimate
$0.007025
Estimated total
$0.010625
Observed usage
A 30-day snapshot of requests handled by LLM7, not a global benchmark.
Success rate
100%
observed requests
Average latency
1,363.69 ms
API response time
P95 latency
5,000 ms
slower observed requests
Start building
A verified request for this exact model. Add your API key and run it.
curl https://api.llm7.io/v1/chat/completions \
-H "Authorization: Bearer $LLM7_API_TOKEN" \
-H "Content-Type: application/json" \
-d '{
"model": "gpt-5.3-codex-spark",
"messages": [
{ "role": "user", "content": "Hello!" }
]
}'