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OpenAI: Gpt 5.1 2025 11 13

OpenAI
Streaming Vision
4K
Context
$12.00
Input /1M
$40.00
Output /1M
2K
Max Output
Run API Call Open in Chat

OpenAI: Gpt 5.1 2025 11 13

Model Overview

Property Value
Model ID openai/gpt-5.1-2025-11-13
Name Gpt 5.1 2025 11 13
Released TBD - Check OpenAI website
Provider OpenAI

Description

OpenAI model: gpt-5.1-2025-11-13 This model supports multimodal capabilities including vision and image understanding. It features advanced reasoning capabilities for complex problem-solving tasks.

Description

Model Overview

Property Value
Model ID `openai/gpt-5. Name

Description

Model Overview

Property Value
Model ID `openai/gpt-5. Name

Specifications

Spec Value
Context Window 4,096 tokens
Max Completion 2,048 tokens
Knowledge Cutoff April 2024
Modalities Text only

Pricing

Type Price
Input $12.00 per 1M tokens
Output $40.00 per 1M tokens

Capabilities

  • Vision: No
  • Tool Use: No
  • JSON Mode: No
  • Reasoning: No
  • Streaming: Yes
  • Function Calling: No

Use Cases

General-purpose language model

Best For

  • Text-based applications
  • General language tasks
  • Straightforward text generation
  • Cost-critical applications
  • Systems where cost is the primary concern

Integration with LangMart

Gateway Support: Type 2 (Cloud), Type 3 (Self-hosted)

API Usage:

curl -X POST https://api.langmart.ai/v1/chat/completions \
  -H "Authorization: Bearer sk-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.1-2025-11-13",
    "messages": [{"role": "user", "content": "Hello"}],
    "max_tokens": 2048
  }'

Testing in LangMart

# Test chat completion
curl -X POST https://api.langmart.ai/v1/chat/completions \
  -H "Authorization: Bearer sk-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.1-2025-11-13",
    "messages": [
      {"role": "user", "content": "Explain quantum computing"}
    ]
  }'

# Test with structured output
curl -X POST https://api.langmart.ai/v1/chat/completions \
  -H "Authorization: Bearer sk-your-api-key" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "openai/gpt-5.1-2025-11-13",
    "messages": [{"role": "user", "content": "Extract data"}],
    "response_format": {"type": "json_object"}
  }'

From OpenAI:

  • GPT-4 Family - Advanced reasoning
  • GPT-3.5 Turbo - Fast and affordable
  • GPT-4o - Optimized multimodal
  • o1 - Extended reasoning

References

Last Updated: December 28, 2025 Generator: OpenAI Markdown Documentation Generator