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Model record / OpenAI
Access gpt-6.1-terra-fast from OpenAI through one OpenAI-compatible API with live market-linked pricing and usage-based billing.
Requests above -1 input tokens use $1.30 input and $6.50 output per 1M tokens.
POST /v1/chat/completions
| Field | Values |
|---|---|
| reasoning.exclude | |
| max_tokens | |
| reasoning | effort: none, low, medium, high, xhigh, max; enabled: true or false |
| response_format | |
| stop | |
| temperature | |
| tool_choice | |
| tools |
POST /v1/messages
| Field | Values |
|---|---|
| max_tokens | |
| thinking |
See how much this model saves and when its recorded price has been lowest.
Savings are visible now, but a best-time recommendation needs at least 12 observations across 6 different hours.
Average saved
35.0%
Cheapest time
Collecting data
Hourly coverage
2/24
Signal quality
Early
Hover a bar for savings per token and observation counts.
Source buckets are UTC; labels are converted to UTC.
Last 24 hours
#355
of 356 ranked models
Last 7 days
#386
of 416 ranked models
Last 30 days
#386
of 416 ranked models
Ready when you are
Marketplace pricing, capped at list, optimized further.
POST /v1/chat/completions
curl https://api.cheaperinference.com/v1/chat/completions \ -H "Authorization: Bearer ci_live_YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "gpt-6.1-terra-fast", "messages": [ { "role": "user", "content": "Reply with the single word OK." } ] }'POST /v1/responses
curl https://api.cheaperinference.com/v1/responses \ -H "Authorization: Bearer ci_live_YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "input": [ { "role": "user", POST /v1/messages
curl https://api.cheaperinference.com/v1/messages \ -H "Authorization: Bearer ci_live_YOUR_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "gpt-6.1-terra-fast", "messages": [ { | type: enabled with budget_tokens, or adaptive; output_config.effort: none, low, medium, high, xhigh, max |
| output_config.format |
| stop_sequences |
| temperature |
| tool_choice |
| tools |
POST /v1/responses
| Field | Values |
|---|---|
| max_output_tokens | |
| reasoning | effort: none, low, medium, high, xhigh, max |
| text.format | |
| temperature | |
| tool_choice | |
| tools |