Openai/Gpt 5 Codex
Openai/Gpt 5 Codex is available via OpenRouter with a 272K context window and up to 128,000 output tokens. Pricing: $1.25/1M input tokens, $10.00/1M output tokens.
Openai/Gpt 5 Codex Pricing & Specifications
What is Openai/Gpt 5 Codex?
Openai/Gpt 5 Codex is a large language model by OpenRouter with a 272K context window and up to 128,000 output tokens. It costs $1.25 per 1M input tokens and $10.00 per 1M output tokens. Openai/Gpt 5 Codex is available via OpenRouter with a 272K context window and up to 128,000 output tokens. Pricing: $1.25/1M input tokens, $10.00/1M output tokens.
Capabilities
text reasoning
Openai/Gpt 5 Codex Cost Examples
Short prompt (500 tokens)
$0.000625
Medium prompt (2K tokens)
$0.00250
Long output (4K tokens)
$0.04000
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Frequently Asked Questions
How much does Openai/Gpt 5 Codex cost per token? +
Openai/Gpt 5 Codex costs $1.25 per 1M input tokens and $10.00 per 1M output tokens. For a typical 1,000-token request with a 500-token response, that works out to roughly $0.006250.
What is the context window for Openai/Gpt 5 Codex? +
Openai/Gpt 5 Codex supports a context window of 272,000 tokens (272K). This determines the maximum combined length of your prompt and conversation history in a single API call.
What is the maximum output length for Openai/Gpt 5 Codex? +
Openai/Gpt 5 Codex can generate up to 128,000 tokens in a single response. If you need longer outputs, you can make multiple API calls and concatenate the results.
Is Openai/Gpt 5 Codex good for coding tasks? +
Openai/Gpt 5 Codex can handle basic coding tasks, but there are models specifically optimized for code generation that may perform better on complex programming problems.