Coding-optimized GPT model for repository edits, reviews, and agentic software work
GPT-5.3-Codex is OpenAI’s most advanced agentic coding model, combining the frontier software engineering performance of GPT-5.2-Codex with the broader reasoning and professional knowledge capabilities of GPT-5.2. It achieves state-of-the-art results...
Context
400K
400,000 tokens
Max output
128K
128,000 tokens
Input
$1.75
per 1M tokens
Output
$14.00
per 1M tokens
Providers
31
34 listings
Intelligence
32.5
Intelligence Index
Pricing
USD per 1M tokens · listed by OpenAI
| Token type | Standard | fast mode |
|---|---|---|
| Input | $1.75 | $3.50 |
| Output | $14.00 | $28.00 |
| Cache read | $0.17 | — |
Lowest input price across providers: Free.
Capabilities
ReasoningYes
Effort: none, low, medium, high, xhigh
Tool callYes
Structured outputYes
TemperatureYes
AttachmentsYes
Interleaved reasoningYes
Field: reasoning_details
Open weightsNo
ModeratedYes
Input
TextImagePDF
Output
Text
Benchmarks
Published scores and Design Arena Elo
- Intelligence32.5#49 of 208
- CodingNot scored—
- AgenticNot scored—
- Arena1,101#93 of 128
| Design Arena category | Elo | Win rate | Arena rank |
|---|---|---|---|
| Data viz | 1,164 | 50.6% | #76 |
| Game dev | 1,161 | 51.3% | #73 |
| Website | 1,161 | 48.6% | #87 |
| ASCII art | 1,149 | 51.2% | #42 |
| Code | 1,143 | 47.2% | #90 |
| UI component | 1,132 | 47.3% | #86 |
| SVG | 1,126 | 54.0% | #58 |
| Godot game dev | 1,124 | 45.1% | #27 |
| Android native | 1,084 | 35.2% | #31 |
| Mobile apps | 1,053 | 41.4% | #46 |
| Web apps | 1,032 | 36.9% | #43 |
| 3D | 1,005 | 35.3% | #112 |
| Full stack | 983 | 36.5% | #42 |
Rankings
Position on each OneAtlas leaderboard
Providers · 31
34 listings
OpenAI
NanoGPT
LLM Gateway
Vercel AI Gateway
Kilo Gateway
Eden AI
DevPass (LLM Gateway)Requesty
AI/ML API
AIHubMix
Ofox
Poe
OpenCode
Venice AI
OrcaRouter
ZenMux
Abacus
Azure
Azure Cognitive Services
DigitalOcean
Impossibl
CommandCode
Prime Inference
Neon
Opper
FastRouter
Vivgrid
GitHub Copilot
GitLab Duo
FrogBot
FreeModel| Provider | Model ID | Context | Input limit | Output | Input $ | Output $ | Reasoning $ | Cache read | Cache write | Audio in | Audio out | Reasoning | Tools | Structured | Temp. | Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Abacus | gpt-5.3-codex-xhigh | 400K | 272K | 128K | $1.75 | $14.00 | — | — | — | — | — | Yes | Yes | Yes | No | Feb 5, 2026 |
| Abacus | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| AI/ML API | openai/gpt-5.3-codex | 400K | 272K | 128K | $3.70 | $29.62 | — | $0.37 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| AIHubMix | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | No | Feb 5, 2026 |
| Azure | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | No | Feb 24, 2026 |
| Azure Cognitive Services | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | No | Feb 24, 2026 |
| CommandCode | gpt-5.3-codex | 400K | 272K | 128K | $2.00 | $8.00 | — | $0.50 | Free | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| DevPass (LLM Gateway) | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| DigitalOcean | openai-gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | No | Feb 5, 2026 |
| Eden AI | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| FastRouter | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| FreeModel | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | $1.75 | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| FrogBot | gpt-5-3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Unknown | No | Feb 5, 2026 |
| GitHub Copilot | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| GitLab Duo | duo-chat-gpt-5-3-codex | 400K | 272K | 128K | Free | Free | — | — | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Impossibl | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Kilo Gateway | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | No | Feb 5, 2026 |
| LLM Gateway | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | No | Yes | Feb 5, 2026 |
| LLM Gateway | azure/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | No | Yes | Feb 5, 2026 |
| NanoGPT | openai/gpt-5.3-codex | 400K | 400K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Neon | gpt-5-3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Ofox | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.18 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| OpenAI | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| OpenCode | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Opper | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | No | Feb 5, 2026 |
| OrcaRouter | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Poe | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.59 | $12.73 | — | $0.16 | — | — | — | Yes | Yes | Unknown | No | Feb 5, 2026 |
| Prime Inference | openai/gpt-5.3-codex | 400K | — | 128K | $1.75 | $14.00 | — | — | — | — | — | Yes | Yes | Yes | No | Feb 5, 2026 |
| Requesty | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Venice AI | openai-gpt-53-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Vercel AI Gateway | openai/gpt-5.3-codex-fast | 400K | 272K | 128K | $3.50 | $28.00 | — | $0.35 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Vercel AI Gateway | openai/gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | Yes | Feb 5, 2026 |
| Vivgrid | gpt-5.3-codex | 400K | 272K | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Yes | No | Feb 5, 2026 |
| ZenMux | openai/gpt-5.3-codex | 400K | — | 128K | $1.75 | $14.00 | — | $0.17 | — | — | — | Yes | Yes | Unknown | Yes | Feb 5, 2026 |