OpenAI: GPT Chat Latest

Image input File input Text input Text output
Author's Description

GPT Chat Latest points to OpenAI's stable API alias `chat-latest` that always resolves to the latest Instant chat model used in ChatGPT. As OpenAI rolls out new Instant model updates...

Key Specifications
Cost
+$$$$$
Context
400K
Released
May 05, 2026
Speed
Ability
Reliability
Supported Parameters

This model supports the following parameters:

Logprobs Tool Choice Tools Response Format Max Tokens Structured Outputs Presence Penalty Top Logprobs Stop Logit Bias Seed Frequency Penalty
Features

This model supports the following features:

Structured Outputs Tools Response Format
Performance Summary

OpenAI's GPT Chat Latest model, created on May 5, 2026, demonstrates a strong overall performance profile, particularly excelling in reliability and speed. It consistently performs among the fastest models, ranking in the 78th percentile across eight benchmarks. However, this speed comes at a premium, as its pricing tends to be at higher levels, positioned in the 12th percentile for cost. The model exhibits exceptional reliability, achieving a perfect 100% success rate across all benchmarks, indicating minimal technical failures and consistent response delivery. Across benchmark categories, GPT Chat Latest shows remarkable accuracy in General Knowledge (100%), earning it accolades for being perfectly accurate and the most accurate model at its price point and speed. It also performs very strongly in Coding (96% accuracy, 96th percentile) and Instruction Following (88% accuracy, 95th percentile), highlighting its capability in complex task execution. Its Reasoning abilities are also robust (94% accuracy, 76th percentile). While its Hallucinations accuracy is high at 98%, it's not the absolute top performer in this specific area. Mathematics (93% accuracy, 65th percentile) and Ethics (99% accuracy, 45th percentile) show solid, though not leading, performance. The model's key strengths lie in its high accuracy across diverse knowledge domains, strong instruction following, and coding proficiency, all delivered with exceptional speed and reliability. Its primary weakness is its premium pricing structure.

Model Pricing

Current Pricing

Feature Price (per 1M tokens)
Prompt $5
Completion $30
Input Cache Read $0.5
Web Search $10000

Price History

Available Endpoints
Provider Endpoint Name Context Length Pricing (Input) Pricing (Output)
OpenAI
OpenAI | openai/gpt-chat-latest-20260505 400K $5 / 1M tokens $30 / 1M tokens
Benchmark Results
Benchmark Category Reasoning Strategy Free Executions Accuracy Cost Duration
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