Pricing-first model page

GPT-5.1-Codex-Max Pricing

The pricing side of GPT-5.1-Codex-Max in one view: live rates, workload examples, cheaper alternatives, and direct paths into the calculator tools.

Rate card

$1.25/M in · $10.00/M out

Market rank

#34

LLM

Context

400.0K tokens

128.0K max output

Access

Hosted API

OpenAI

Pricing calculator Token counter Full model page Provider pricing

LLM pricing context

Pricingper 1M tokens

17% cheaper than category average

Input

$1.25

-42% vs avg

Output

$10.00

+8% vs avg

Cost Estimator

Monthly tokens (millions)

Input: 70%Output: 30%

Est. monthly cost$38.75

Category average$42.88

You save $4.13/month vs category average

Lower-Cost Alternatives

Models from the same market that come in below GPT-5.1-Codex-Max's current unit price.

5 nearby options

Nemotron 3 Super (free)

NVIDIA

Quality score 85

MiniMax M2.5 (free)

MiniMax

Quality score 83.4

Nemotron Nano 12B 2 VL (free)

NVIDIA

Quality score 82.3

Step 3.5 Flash (free)

StepFun

Quality score 78.2

gpt-oss-120b (free)

OpenAI

Quality score 74.1

Usage Examples

Starter

1.0M in / 500.0K out

$6.25

per monthly

Team

10.0M in / 5.0M out

$62.50

per monthly

Production

50.0M in / 25.0M out

$312.50

per monthly

At a Glance

ProviderOpenAI

CategoryLLM

Comparable unit price$5.63/M

Open sourceNo

Hosted APIAvailable

Frequently Asked Questions

This page concentrates the cost side of GPT-5.1-Codex-Max into one place: live rates, workload examples, market context, lower-cost alternatives, and direct links to the dedicated calculator tools.

Use it to spot the models that undercut GPT-5.1-Codex-Max on price while staying in the same category. From there, jump into the calculator or the full model page to decide whether the quality tradeoff is worth it.

Yes. The same live pricing feeds that power the homepage, calculators, and provider pages also drive this pricing page.

GPT-5.1-Codex-Max Pricing | AI Models Map