OpenAI: GPT-5 Codex
openai/gpt-5-codex
GPT-5 Codex (OpenAI) ranks #64 of 260 on the TryAii Score while still priced at $1.25/$10 per million input/output tokens — models at its level now sell for about $1.95 per million output tokens. DeepSeek V4.1 Flash matches it for $0.12 per million output tokens.
Prompt $/1M
$1.250
Completion $/1M
$10.000
Context
400,000 tok
Best provider
—
Specs
- Model id
- openai/gpt-5-codex
- Display name
- OpenAI: GPT-5 Codex
- Modality
- text+image->text
- Tokenizer
- GPT
- Instruct type
- —
- Context length
- 400,000
- Max completion
- 128,000
- Prompt $/1M
- $1.250
- Completion $/1M
- $10.000
- Free tier
- no
Capabilities
- Function callingno
- JSON modeno
- System promptno
- Visionno
- Moderatedyes
Benchmark scores
Each axis is one benchmark, normalized to the best model in the field.
No benchmark data for this model.
Speed by provider
| Provider | tok/s | ||
|---|---|---|---|
| No speed data. | |||
Prompt caching by provider
| Provider | Min tokens to cache |
|---|---|
| OpenAI | 1,024 tokens |