A serious coding model with repository-scale context that earns its place in any developer's toolkit.
93
Coding
52
Writing
68
Research
0
Images
58
Value
88
Long Context
Use this when
Professional developers who need to reason across large codebases, generate production-ready code, and debug complex multi-file projects.
Skip this if
You need image generation, creative writing, or general-purpose chat — there are better-value models for non-coding tasks.
Pricing
$1.25/1M in
$10.00/1M out
→0%since May 2026
Context
400k tokens
Speed
Balanced
The $10/1M output cost means heavy code generation workloads can get expensive fast — budget carefully for bulk generation use cases. Context window of 400K is among the largest in its price tier. Supersedes GPT-4o, so existing GPT-4o coding workflows should consider migrating for improved performance.
400K context window enables ingesting entire repositories or large monorepos in a single prompt
Coding-optimized architecture outperforms standard GPT-5 on code generation and refactoring benchmarks
Competitive $1.25/1M input pricing makes large-context coding tasks cost-effective compared to Claude Sonnet 4.6
Strong multi-language support across Python, TypeScript, Rust, Go, and systems-level languages
Weaknesses
Output cost of $10/1M tokens adds up quickly for verbose code generation or documentation tasks
Not a general-purpose reasoning model — creative writing, nuanced analysis, and image tasks are outside its sweet spot
No native image generation or multimodal output capabilities
Real-world use cases
What people actually use OpenAI: GPT-5 Codex for.
Loading an entire Node.js monorepo into context and asking for a cross-cutting refactor to a new authentication pattern
Debugging a complex multi-file Rust application by ingesting all source files and error logs simultaneously
Generating comprehensive unit test suites for a large Python Django application with full codebase context
Price History
OpenAI: GPT-5 Codex pricing over time
→0% since May 9
48 data points · tracked daily since May 9, 2026
Ready to try it?
Start using OpenAI: GPT-5 Codex
Professional developers who need to reason across large codebases, generate production-ready code, and debug complex multi-file projects.. Start free — no card required.
Recommendations are made independently based on real-world use and public benchmarks. See our disclosures for details.
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Agentic coding, computer-use workflows, and complex research tasks
GPT-4 Turbo is OpenAI's high-capability flagship model featuring a 128K context window, trained on data up to April 2024. It delivers strong reasoning, coding, and instruction-following across complex tasks.
Verdict
A capable but aging flagship that has been outpaced by cheaper, faster successors in OpenAI's own lineup.
Quality score
75%
Pricing
$10.00/1M in
$30.00/1M out
Speed
Balanced
Best for complex multi-step tasks requiring deep reasoning, long document analysis, or sophisticated code generation where cost is secondary to quality.
Context
128k tokens
GPT-4 Turbo is available via the OpenAI API. It has largely been succeeded by GPT-4o, which is faster, supports vision natively, and is cheaper. Organizations should evaluate whether migrating to GPT-4o or o3 makes more sense before building new workflows on this model.
GPT-4 Turbo (v1106) is an older snapshot of OpenAI's flagship GPT-4 Turbo model released in November 2023, offering a 128K context window with strong general-purpose reasoning and instruction-following capabilities. It predates later GPT-4 Turbo updates and GPT-4o, making it a legacy choice for workflows locked to this specific version.
Verdict
A reliable but outdated GPT-4 snapshot that only makes sense when version pinning is a hard requirement.
Quality score
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Pricing
$10.00/1M in
$30.00/1M out
Speed
Balanced
Best for teams requiring a pinned, stable version of gpt-4 turbo for reproducible outputs in long-document analysis or complex instruction pipelines.
Context
128k tokens
This is a pinned model snapshot (v1106) and will not receive capability updates. OpenAI may deprecate older snapshots over time. Knowledge cutoff is April 2023. Not recommended for new deployments given the superior cost-performance of GPT-4o and GPT-4.1.
Legacy128K ContextPinned SnapshotGPT-4Premium
Best for
Teams requiring a pinned, stable version of GPT-4 Turbo for reproducible outputs in long-document analysis or complex instruction pipelines.
Pricing moves, ranking shifts, and capability updates.
New ModelMar 27, 2026
OpenAI: GPT-5 Codex — added to UseRightAI
OpenAI: GPT-5 Codex (OpenAI) is now indexed. It supersedes GPT-4o. A serious coding model with repository-scale context that earns its place in any developer's toolkit.
OpenAI: GPT-5 Codex is best for professional developers who need to reason across large codebases, generate production-ready code, and debug complex multi-file projects.. It is a strong fit when that workflow matters more than the tradeoffs around balanced pricing and balanced speed.
When should I avoid OpenAI: GPT-5 Codex?
You need image generation, creative writing, or general-purpose chat — there are better-value models for non-coding tasks.
What is a cheaper alternative to OpenAI: GPT-5 Codex?
Meta: Llama 3.1 8B Instruct is the lower-cost option to compare first when you want a similar workflow fit with less token spend.
What is a faster alternative to OpenAI: GPT-5 Codex?
GPT-5.5 is the better pick when response time matters more than maximum depth or premium quality.
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