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DeepSeek V3.2 Speciale vs GPT-5.1 Codex mini

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 unpublished capabilities are marked explicitly.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
specificationDeepSeek V3.2 Speciale

deepseek/deepseek-v3-2-speciale

GPT-5.1 Codex mini

openai/gpt-5.1-codex-mini

creatorDeepSeekOpenAI
model typeText generationText generation
input modalitiestexttext, image
output modalitiestexttext
base input price$0.58 / 1m tokens$0.25 / 1m tokens
base output price$1.68 / 1m tokens$2.00 / 1m tokens
cached input pricenot published$0.025 / 1m tokens
context window163.84k tokens400k tokens
tool callingnot publishednot published
context pricing tiersnone publishednone published
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

DeepSeek V3.2 Speciale

$1.42

estimated usage cost

1,000 requests × (1,000 uncached input × $0.58 + 500 output × $1.68) / 1,000,000 = $1.42

base rates; no context pricing tiers are published.

GPT-5.1 Codex mini

$1.25

estimated usage cost

1,000 requests × (1,000 uncached input × $0.25 + 500 output × $2.00) / 1,000,000 = $1.25

base rates; no context pricing tiers are published.

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.

DeepSeek V3.2 Speciale vs GPT-5.1 Codex mini: side-by-side summary

DeepSeek V3.2 Speciale and GPT-5.1 Codex mini 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.

DeepSeek V3.2 Speciale is created by DeepSeek. It has a 163,840-token context window. Base API pricing (USD): $0.58 per million input tokens; $1.68 per million output tokens.

GPT-5.1 Codex mini is created by OpenAI. It has a 400,000-token context window. Base API pricing (USD): $0.25 per million input tokens; $2.00 per million output tokens.

context window

  • DeepSeek V3.2 Speciale: 163,840 tokens
  • GPT-5.1 Codex mini: 400,000 tokens

price

  • DeepSeek V3.2 Speciale: Base API pricing (USD): $0.58 per million input tokens; $1.68 per million output tokens.
  • GPT-5.1 Codex mini: Base API pricing (USD): $0.25 per million input tokens; $2.00 per million output tokens.

created by

  • DeepSeek V3.2 Speciale: DeepSeek
  • GPT-5.1 Codex mini: OpenAI