GPT Pro Latest (GPT-5.5 Pro)

The only evidence available for GPT Pro Latest (GPT-5.5 Pro) is a single May 2026 third-party Medium commentary that broadly describes a "ChatGPT 5.5" family without ever naming the "GPT Pro Latest" or "GPT-5.5 Pro" variant, the Eden AI listing, or the openai/gpt-pro-latest model key. Because no official creator release notes, model card, or technical report has been supplied, the overview cannot confidently describe this entry's training lineage, architecture, or benchmark profile beyond noting its placement inside the broader GPT-5 generation.

In practical terms, there is not enough source-supported detail to recommend a specific fit, workflow, or qualitative strength for GPT Pro Latest (GPT-5.5 Pro). The Medium article's descriptions of reasoning, agentic coding, and multimodal behavior are written about the consumer ChatGPT 5.5 line rather than this exact Pro SKU, so transferring those claims here would violate the rule that variant-specific statements require a source that explicitly names the variant. Users evaluating this model should consult an official OpenAI model card or release note before relying on it for high-stakes work.

Eden AIopenai/gpt-pro-latestgpt-pro

Open provider page Provider docs

Quick Info

Provider: Eden AI
Model key: openai/gpt-pro-latest
Release date: Apr 23, 2026
Last updated: Apr 23, 2026
Knowledge cutoff: 2025-12-01
Input modalities
Output modalities
Capabilities

Cost

Input token cost: $30.00
Output token cost: $180.00

Limits

Input tokens: 922,000 tokens
Output tokens: 128,000 tokens
Context window: 1,050,000 tokens

Latest news about GPT Pro Latest (GPT-5.5 Pro)

Eden AI

Coverage

The Medium recap by Shorya Bisht (May 10, 2026) frames GPT-5.5 as a quiet renegotiation of expectations for AI assistants, arguing it changes how the model handles medical questions and code alike. It documents a two-wave launch: GPT-5.5 Thinking and Pro shipped on April 23, 2026, followed by the all-user GPT-5.5 Insta Technically useful details for a developer audience are limited, but the piece confirms the GPT-5.5 Instant tier and the cross-tier rollout, plus qualitative observations on tone, completion, and error handling that are consistent with Mollick's hands-on impressions. It largely restates Handy AI's spec and benchmark in