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OpenAI: GPT-5.1-Codex-Max

OpenAI: GPT-5.1-Codex-Max is a balanced model with long context support, suited to image workflows and agent workflows for enterprise teams.

Try OpenAI: GPT-5.1-Codex-Max with your team

Last reviewed: 2026-04-28

Context Window
400,000
Input / 1M
$1.88
Output / 1M
$15.00

What can you do with OpenAI: GPT-5.1-Codex-Max?

Practical ways teams can use OpenAI: GPT-5.1-Codex-Max inside governed AI workflows.

01

Summarize long documents with OpenAI: GPT-5.1-Codex-Max

Condense contracts, policies, technical specs, RFPs, and research reports into decision-ready summaries with OpenAI: GPT-5.1-Codex-Max.

02

Support finance planning with OpenAI: GPT-5.1-Codex-Max

Draft budget narratives, explain spend drivers, create forecast assumptions, and summarize vendor costs with OpenAI: GPT-5.1-Codex-Max.

03

Prepare legal and compliance reviews with OpenAI: GPT-5.1-Codex-Max

Extract obligations, flag risky clauses, compare policy language, and prepare review checklists with OpenAI: GPT-5.1-Codex-Max.

04

Create presentations with OpenAI: GPT-5.1-Codex-Max

Turn notes, research, and meeting outcomes into structured slide outlines, speaker notes, and executive narratives with OpenAI: GPT-5.1-Codex-Max.

05

Code and debug with OpenAI: GPT-5.1-Codex-Max

Draft features, explain unfamiliar code, generate tests, review pull requests, and reason through implementation tradeoffs with OpenAI: GPT-5.1-Codex-Max.

06

Analyze spreadsheets with OpenAI: GPT-5.1-Codex-Max

Interpret CSV exports, explain variance, generate formulas, and identify operational or financial patterns with OpenAI: GPT-5.1-Codex-Max.

07

Draft customer communications with OpenAI: GPT-5.1-Codex-Max

Create support replies, sales follow-ups, onboarding emails, renewal messages, and account updates with OpenAI: GPT-5.1-Codex-Max.

08

Build workflow automations with OpenAI: GPT-5.1-Codex-Max

Plan agent steps, transform data between tools, create structured outputs, and support repeatable operations with OpenAI: GPT-5.1-Codex-Max.

09

Research competitors and markets with OpenAI: GPT-5.1-Codex-Max

Synthesize market signals, positioning, pricing context, customer segments, and competitive risks with OpenAI: GPT-5.1-Codex-Max.

10

Create knowledge-base answers with OpenAI: GPT-5.1-Codex-Max

Answer employee questions from internal policies, product docs, training material, and operating procedures with OpenAI: GPT-5.1-Codex-Max.

11

Improve security reviews with OpenAI: GPT-5.1-Codex-Max

Classify risk, draft incident summaries, review access patterns, and create remediation action lists with OpenAI: GPT-5.1-Codex-Max.

12

Generate product and marketing copy with OpenAI: GPT-5.1-Codex-Max

Create landing-page drafts, positioning variants, launch messaging, ad concepts, and campaign briefs with OpenAI: GPT-5.1-Codex-Max.

Why this model

OpenAI: GPT-5.1-Codex-Max is available in Remova as a long context option with $1.88 per 1M tokens input pricing, $15.00 per 1M tokens output pricing, and text+image->text modality support for enterprise AI operations.

  • OpenAI: GPT-5.1-Codex-Max offers long context capacity for enterprise prompts and documents.
  • Current Remova pricing band is balanced: $1.88 per 1M tokens input and $15.00 per 1M tokens output.
  • Best-fit workloads include: Image workflows, Agent workflows, Advanced reasoning.
  • Keep role-based access in place before broad rollout.

At a glance

Model ID
openai/gpt-5.1-codex-max
Context Window
400,000 tokens
Modality
text+image->text
Input Modalities
text, image
Output Modalities
text
Input Price
$1.88 per 1M tokens
Output Price
$15.00 per 1M tokens
Provider
OpenAI
Listing Date
2025-12-04

Strengths

  • OpenAI: GPT-5.1-Codex-Max is suited for image workflows.
  • Supports long context for multi-step prompts and larger working sets.
  • Pricing profile is balanced, enabling predictable workload routing decisions.
  • Can be paired with policy guardrails for safer deployment at scale.

Tradeoffs

  • Operational drift can appear over time without recurring quality evaluations.
  • Long-context prompts can increase spend and latency if prompts are not scoped carefully.
  • Balanced-price tiers still need policy-based routing to protect monthly budgets.
  • Multimodal pipelines require strict input handling and validation policies for reliability.

Best for

  • OpenAI: GPT-5.1-Codex-Max for internal productivity assistants and knowledge workflows.
  • OpenAI: GPT-5.1-Codex-Max for tool-driven automation with governance checkpoints.
  • OpenAI: GPT-5.1-Codex-Max for complex analysis and long-form decision support.
  • OpenAI: GPT-5.1-Codex-Max for governed enterprise assistant workflows across teams.

Rollout checklist

  • Define where OpenAI: GPT-5.1-Codex-Max is default vs. fallback in your routing policy.
  • Enable role-based access and policy checks before opening access broadly.
  • Set spend guardrails by team and monitor weekly token consumption.
  • Start with one workflow, then expand after you verify quality and spend.
  • Re-run quality and cost benchmarks monthly as newer releases appear.

Related models

Explore adjacent model profiles for routing and benchmarking decisions.

Free Resource

Where Should Your Team Start with AI?

Tell us your industry and team size. We'll tell you which AI use cases will save the most time with the least setup.

You get

A shortlist of AI use cases ranked by impact and effort for your situation.

Tuning notes

include_reasoning

Enable only where reasoning traces add operational value or review quality.

max_completion_tokens

Use this parameter only with tested defaults in production workflows.

max_tokens

Set completion limits to avoid unpredictable long-output spend.

reasoning

Increase reasoning effort only for complex tasks that justify extra cost.

Free Assessment

What Could Go Wrong?

5 questions about how your company uses AI today. We'll show you the risks most companies miss until it's too late.

You get

A risk breakdown with the 3 things you should fix first.

Book demo
Knowledge Hub

OpenAI: GPT-5.1-Codex-Max FAQs

Choose OpenAI: GPT-5.1-Codex-Max when the workload aligns with image workflows, agent workflows, advanced reasoning and quality targets justify its pricing profile.
It depends on workload mix. Most organizations use routing policies so routine traffic stays on lower-cost tiers.
Validate quality on real internal prompts, token efficiency, latency, and policy compliance behavior.

Deploy This Model With Governance

Use policy controls, role-based access, and budget guardrails before enabling advanced model tiers at scale.

Try OpenAI: GPT-5.1-Codex-Max with your team