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GPT-5.3 Codex

Most advanced agentic coding model combining frontier coding performance with broader reasoning capabilities.

gpt-5.3-codex
STABLEModel Deactivated
1,050,000 context
Starting at $0.60/M input tokens
Starting at $3.73/M output tokens
Streaming
Vision
Tools
Reasoning
JSON Output

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LangRouter

langrouter/gpt-5.3-codex
Context Size
1.1M
Stability
STABLE
Deactivated since Jun 12, 2026
Pricing
Input
$0.5970
/M
Cached
$0.0600
/M
Output
$3.7300
/M
Capabilities
Streaming
Vision
Tools
Reasoning
JSON Output
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