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GPT-6.1 Terra

GPT-6.1 Terra is the mid-tier model of OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. It handles everyday agent, coding and writing work, reads screenshots and interfaces well for computer use, and keeps a 1.05M-token context window.

textstreamingreasoningfunction tools
gpt-6.1-terra
Open in playground

Our price

$0.60 / $3.00

input / output per 1M

Official

$1.00 / $5.00
−40% vs official

USD · Published rate · Updated 2026-10-12

First request

Available
curl https://api.tokely.me/v1/chat/completions \
  -H "Authorization: Bearer $TOKELY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-6.1-terra",
    "messages": [{"role": "user", "content": "Hello!"}],
    "max_tokens": 1024
  }'

Set TOKELY_API_KEY to your dashboard key. Requests require a funded Tokely balance. Base URL: https://api.tokely.me/v1.

Capabilities & limits

Context window
1,050,000 tokens
Model max output
128,000 tokens
Cached input price
$0.03 per 1M tokens · Official: $0.05
Provider
OpenAI
API model ID
gpt-6.1-terra
Category
Text
Endpoints
POST /v1/chat/completionsPOST /v1/responses
Tokely max output
128,000 tokens / request, including reasoning tokens
Default output
256 tokens. Set an explicit limit for longer responses.
Request limits
16 MB JSON body (including base64) · 128 messages · 32 function tools
Rate limit
60 requests / minute / account, across its keys
Supported input
Text and function tool results · inline PNG, JPEG and WebP images · inline PDFs
Model modalities
file, image, text. Tokely accepts text, inline images and PDFs where listed above; audio and video input are not enabled.

The context includes your instructions, conversation history, tool definitions and generated output. Keep the input and requested output within the model’s context window.

API reference

Authenticate with Authorization: Bearer YOUR_TOKELY_API_KEY. Use an OpenAI SDK with the Tokely base URL.

model
Required string: gpt-6.1-terra
messages
An array of system, developer, user, assistant and tool messages.
max_tokens
Optional integer, 1–128,000. Defaults to 256.
stream
Set true for Server-Sent Events (SSE).
reasoning_effort
Optional reasoning effort. Supported values depend on the model; omit to use its default.
tools
Function definitions executed by your application. Provider-hosted tools are not enabled.

The response contains choices with message or tool_calls, finish_reason, and usage (prompt_tokens, completion_tokens, total_tokens). Streaming sends chat completion chunks.

400 / 415
Invalid request, parameter, endpoint for this model, or content type.
401 / 403
Invalid, revoked or restricted API key.
402
Insufficient account balance or API key budget.
429
Request limit reached. Retry after the indicated delay.
502 / 503 / 504
Upstream failure, temporary service unavailability or request timeout.

Compare nearby prices

USD per million tokens. Compare price and context; these are not quality benchmarks.
ModelInputOutputContext
GPT-6.1 TerraOpenAI · this model$0.6$31,050,000
Qwen 3.6 35B A3BQwen$0.5$3262,144
o3 MiniOpenAI$0.77$3.08200,000
o4 MiniOpenAI$0.77$3.08200,000
Gemini 3.7 FlashGoogle$0.525$2.6251,048,576

Frequently asked questions

How much does GPT-6.1 Terra cost?

$0.6 per million input tokens, $3 per million output tokens and $0.03 per million cached input tokens. Usage is charged to your Tokely balance.

Do I need a separate OpenAI account?

Use your Tokely API key and balance. A separate provider key is not required.

How do I switch to this model?

Set model to gpt-6.1-terra and use /v1/chat/completions. Keep your Tokely base URL and API key.

What is the context window?

1,050,000 tokens, including input and output. The Tokely request body and output limits listed above also apply.

More OpenAI models & prices

Compare GPT-6.1 Terra with other OpenAI versions and with the official developer rates.

All OpenAI models on Tokely · Cheap GPT API — Model Prices & Discounts · Compare AI API gateways · Estimate your token cost