Scheduled for retirement on Oct 26, 2027. Still available at the prices below until then.

GPT 5.5 (2026-04-23)

OpenAIFirst listed Apr 2026

Vision Tool use Reasoning Prompt caching Structured output Web search

Compare GPT 5.5 (2026-04-23)Count tokens for GPT 5.5 (2026-04-23)

Context

1.1M

Max output

128K

Serving providers

Cheapest input

$5.00 /1M

On-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments (committed-use discounts, provisioned throughput, negotiated rates) can be materially lower.

Pricing by serving provider

standard tier · per 1M tokens · click a provider to expand

Serving provider

Input /1M

Output /1M

Endpoints

Azure

$5.00

$30.00

OpenAICheapest

$5.00

$30.00

Standardgpt-5.5-2026-04-23

Component	Unit	Standard	Batch
Text cached in	/1M tok	$0.50	—
Text input	/1M tok	$5.00	$2.50
Text output	/1M tok	$30.00	$15.00

Price history

listed seller prices, input and output per 1M tokens

Input Output

Cost calculator

estimate your monthly spend on this model

Input tokens / call

Output tokens / call

Calls / month

Serving provider

$3,400

estimated / month

Model IDs

copy the exact identifier for your platform

gpt-5.5-2026-04-23azure/gpt-5.5-2026-04-23

Frequently asked questions

GPT 5.5 (2026-04-23) pricing, context and availability

Is GPT 5.5 (2026-04-23) still available?

Yes. GPT 5.5 (2026-04-23) is scheduled for retirement on 2027-10-26.

How much does GPT 5.5 (2026-04-23) cost?

GPT 5.5 (2026-04-23) costs $5.00 per 1M input tokens from OpenAI, and $30.00 per 1M output tokens from OpenAI.

What is the context window of GPT 5.5 (2026-04-23)?

GPT 5.5 (2026-04-23) accepts up to 1.1M tokens of context and can return up to 128K output tokens.

Which providers serve GPT 5.5 (2026-04-23)?

GPT 5.5 (2026-04-23) is available from 2 serving providers, each with its own pricing and model ID. OpenAI is currently the cheapest.

What can GPT 5.5 (2026-04-23) do?

GPT 5.5 (2026-04-23) supports image input (vision), tool use, reasoning, prompt caching, structured output and web search.

Other OpenAI models

compare pricing across the OpenAI lineup

gpt-oss-120b$0.03/1M · 23 providers gpt-oss-20b$0.0145/1M · 15 providers GPT-5 Mini$0.25/1M · 9 providers GPT-5$1.25/1M · 9 providers GPT-5 Nano$0.05/1M · 8 providers GPT-5.6 Luna$0.20/1M · 7 providers GPT-5.6 Terra$2.00/1M · 7 providers GPT-4o-mini$0.15/1M · 6 providers

Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026

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