GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon...
Models
Every model in the catalog with source-linked pricing, context limits, provider availability, and published benchmark results.
Claude Opus 5 is Anthropic’s flagship model for demanding reasoning, coding, and long-horizon agentic work. It is particularly strong at end-to-end software tasks, code review and bug finding, visual analysis...
Gemini 3.7 Flash is a multimodal model from Google for fast agentic workflows, coding, and complex multi-step reasoning. It is designed for tasks that require responsive performance and reliable multi-step...
Sonnet 5 is Anthropic's most capable Sonnet-class model, with frontier performance across coding, agents, and professional work. It supports adaptive thinking with selectable reasoning effort levels (low, medium, high, max,...
Claude Fable 5 is a Mythos-class model from Anthropic, built for autonomous knowledge work and coding. It supports text, image, and file inputs with text output, with reasoning support and...
Top Claude Opus tier for the hardest reasoning, coding, and long-horizon agents
| Model | Creator | Score | Inputs | Context | Input | Output | Released | Compare |
|---|---|---|---|---|---|---|---|---|
| OpenAI: GPT-6 Astraopenai/gpt-6-astra | 64.5 | 1.05M | $10 | $50 | 2026-09-04 | |||
| Claude Opus 5anthropic/claude-opus-5 | 53.4 | 1M | $5 | $25 | 2026-07-24 | |||
| Google: Gemini 3.7 Flashgoogle/gemini-3.7-flash | 43.6 | 1.04858M | $0.75 | $3.75 | 2026-08-13 | |||
| Anthropic: Claude Sonnet 5anthropic/claude-sonnet-5 | 38.8 | 1M | $2 | $10 | 2026-06-30 | |||
| Anthropic: Claude Fable 5anthropic/claude-fable-5 | 29.3 | 1M | $10 | $50 | 2026-06-09 | |||
| Claude Opus 4.8anthropic/claude-opus-4-8 | 13.4 | 1M | $5 | $25 | 2026-05-28 |