OpenAI: gpt-5.1-codex-max-20251204

Name: OpenAI: gpt-5.1-codex-max-20251204
Price: 1.25 USD
Author: Cloudflare AI Gateway

Input price

$1.25/1M tokens

Output price

$10/1M tokens

Capabilities

Show unsupported (7)

Infrastructure

Streaming

Details

Model IDopenai/gpt-5.1-codex-max-20251204

ProviderCloudflare AI Gateway

CreatorOpenAI

Familygpt-5.1

License—

Status—

Typechat

Input modalitiestext

Output modalitiestext

Open weight—

Parameters—

Architecture—

Context window—

Max input—

Max output—

Reasoning tokens—

Knowledge cutoff—

Release date2025-12-04

Sourceofficial

Pricing

Input

$1.25

Output

$10

Cache write

—

Cache read

—

Batch in

—

Batch out

—

Family Comparison: gpt-5.1

Model	Caps	Perf	Speed	Context	Max out	Pricing
Azure OpenAI: gpt-5.1-codex-mini	S	—	—	—	—	$0.25$2
OpenAI: gpt-5.1-codex-mini-20251113	S	—	—	—	—	$0.25$2
OpenAI: gpt-5.1-codex-mini	RTJJMS	—	—	400K	128K	$0.25$2
OpenRouter: openai/gpt-5.1-codex-mini-20251113	S	—	—	—	—	$0.25$2
OpenRouter: openai/gpt-5.1-codex-mini	S	—	—	—	—	$0.25$2
Azure OpenAI: gpt-5.1-chat-2025-11-13	S	—	—	—	—	$1.25$10
Azure OpenAI: gpt-5.1-chat	S	—	—	—	—	$1.25$10
Azure OpenAI: gpt-5.1-codex-max	S	—	—	—	—	$1.25$10
Azure OpenAI: gpt-5.1-codex	S	—	—	—	—	$1.25$10
Azure OpenAI: gpt-5.1	S	—	—	—	—	$1.25$10
OpenAI: gpt-5.1-20251113	RTJJMSB	—	—	400K	128K	$1.25$10
OpenAI: gpt-5.1-chat-20251113	S	—	—	—	—	$1.25$10
OpenAI: gpt-5.1-chat	S	—	—	—	—	$1.25$10
OpenAI: gpt-5.1-codex-20251113	S	—	—	—	—	$1.25$10
OpenAI: gpt-5.1-codex-max-20251204	S	—	—	—	—	$1.25$10
OpenAI: gpt-5.1-codex-max	RTJJMS	—	—	400K	128K	$1.25$10
OpenAI: gpt-5.1-codex	RTJJMS	—	—	400K	128K	$1.25$10
OpenAI: gpt-5.1	RTJJMSB	—	—	400K	128K	$1.25$10
OpenRouter: openai/gpt-5.1-20251113	S	—	—	—	—	$1.25$10
OpenRouter: openai/gpt-5.1-chat-20251113	S	—	—	—	—	$1.25$10
OpenRouter: openai/gpt-5.1-chat	S	—	—	—	—	$1.25$10
OpenRouter: openai/gpt-5.1-codex-20251113	S	—	—	—	—	$1.25$10
OpenRouter: openai/gpt-5.1-codex-max-20251204	S	—	—	—	—	$1.25$10
OpenRouter: openai/gpt-5.1-codex-max	S	—	—	—	—	$1.25$10
OpenRouter: openai/gpt-5.1-codex	S	—	—	—	—	$1.25$10
OpenRouter: openai/gpt-5.1	S	—	—	—	—	$1.25$10

API

GET/v1/models/cloudflare-ai-gateway/openai/gpt-5.1-codex-max-20251204

OpenAI: gpt-5.1-codex-max-20251204

openai/gpt-5.1-codex-max-20251204

Changes · 3 entries

openai/gpt-5.1-codex-max-20251204update1cd659eMar 24, 2026, 04:19 AM

modalitiesinput["text"]output["text"]

openai/gpt-5.1-codex-max-20251204update2b100acMar 23, 2026, 05:30 AM

model_typechat

openai/gpt-5.1-codex-max-20251204create7a4f1f6Mar 22, 2026, 05:43 AM