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MiniMax M3 vs GPT-5.6 Terra

compare api pricing, context windows, and capabilities side by side.

use the same workload to understand the cost before choosing a model.

prices are published impossibl api usage rates in usd. compare the billing units and context tiers alongside each price. unpublished capabilities are marked explicitly.

model pricing, capabilities, context limits, and retirement dates
specificationMiniMax M3

minimaxai/minimax-m3

GPT-5.6 Terra

openai/gpt-5.6-terra

creatorMiniMaxOpenAI
model typeText generationText generation
input modalitiestext, imagetext, image
output modalitiestexttext
base input price$0.30 / 1m tokens$2.00 / 1m tokens
base output price$1.20 / 1m tokens$12.00 / 1m tokens
cached input price$0.06 / 1m tokens$0.20 / 1m tokens
cache creation pricenot published$2.50 / 1m tokens
context window524.3k tokens1.05m tokens
tool callingnot publishednot published
context pricing tiers
  • above 512,000 input tokens

    $0.60 input / $2.40 output per 1m tokens

  • above 272,000 input tokens

    $4.00 input / $18.00 output per 1m tokens

endpoints
  • /v1/chat/completions
  • /v1/chat/completions
retirementnot announcednot announced

estimate your api cost

estimate text token usage across the same workload. all amounts are in usd.

token workload

total input, including cached tokens

include billable reasoning tokens

the same token usage in each request

a subset of total input, never additional tokens

MiniMax M3

$0.90

estimated usage cost

1,000 requests × (1,000 uncached input × $0.30 + 500 output × $1.20) / 1,000,000 = $0.90

base rates: up to 512,000 input tokens per request, inclusive.

GPT-5.6 Terra

$8.00

estimated usage cost

1,000 requests × (1,000 uncached input × $2.00 + 500 output × $12.00) / 1,000,000 = $8.00

base rates: up to 272,000 input tokens per request, inclusive.

estimates use published impossibl api usage rates. configured billing adjustments, funding fees, taxes, and custom workspace rates are excluded and may change the final amount.

image and audio usage, cache creation, and additional tool charges are excluded. reasoning tokens count as billable output, even when they are not visible in the response.

MiniMax M3 vs GPT-5.6 Terra: side-by-side summary

MiniMax M3 and GPT-5.6 Terra are available through the Impossibl API. They share the /v1/chat/completions endpoint. Set the model identifier to select the model for a supported request.

MiniMax M3 is created by MiniMax. It has a 524,300-token context window. Base API pricing (USD): $0.30 per million input tokens; $1.20 per million output tokens. Above 512,000 input tokens per request, context-tier rates apply to the whole request.

GPT-5.6 Terra is created by OpenAI. It has a 1,050,000-token context window. Base API pricing (USD): $2.00 per million input tokens; $12.00 per million output tokens. Above 272,000 input tokens per request, context-tier rates apply to the whole request.

context window

  • MiniMax M3: 524,300 tokens
  • GPT-5.6 Terra: 1,050,000 tokens

price

  • MiniMax M3: Base API pricing (USD): $0.30 per million input tokens; $1.20 per million output tokens. Above 512,000 input tokens per request, context-tier rates apply to the whole request.
  • GPT-5.6 Terra: Base API pricing (USD): $2.00 per million input tokens; $12.00 per million output tokens. Above 272,000 input tokens per request, context-tier rates apply to the whole request.

created by

  • MiniMax M3: MiniMax
  • GPT-5.6 Terra: OpenAI