Compare models
Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.
- GPT-6 AstraOpenAIRemove
- Gemini 3.8 FlashGoogleRemove
- Hy4 previewTencentRemove
- Sonar Reasoning ProPerplexityRemove
4 is the maximum. Remove one to add another.
| Attribute | GPT-6 Astragpt-6-astra | Gemini 3.8 Flashgemini-3.8-flash | Hy4 previewhy4-preview | Sonar Reasoning Prosonar-reasoning-pro |
|---|---|---|---|---|
| Pricing | ||||
| Input | $10.00 / 1M | $0.75 / 1M | $0.834 / 1M | $2.00 / 1M |
| Output | $50.00 / 1M | $3.75 / 1M | $2.50 / 1M | $8.00 / 1M |
| Cache Write (5m) | $10.00 / 1M | $0.75 / 1M | $0.834 / 1M | $2.00 / 1M |
| Cache Write (1h) | $10.00 / 1M | $0.75 / 1M | $0.834 / 1M | $2.00 / 1M |
| Cache Read | $10.00 / 1M | $0.75 / 1M | $0.834 / 1M | $2.00 / 1M |
| Web Search | $0 / 1M | $0 / 1M | $0 / 1M | $0 / 1M |
| Context | ||||
| Max context | 1M | 1M | 1M | 128K |
| Max output | N/A | N/A | N/A | N/A |
| Capabilities | ||||
| Vision | Yes | Yes | Yes | No |
| Function Calling | Yes | Yes | Yes | No |
| JSON Mode | Yes | Yes | Yes | No |
| Streaming | Yes | Yes | Yes | No |
| Catalogue | ||||
| Provider | OpenAI | Tencent | Perplexity | |
| Category | chat | chat | chat | chat |
| Charge type | Pay As You Go | Pay As You Go | Pay As You Go | Pay As You Go |
| Released | — | — | — | — |
| Description | ||||
| Summary | GPT-6 Astra is OpenAI's flagship model for demanding end-to-end professional work, designed for advanced analysis, software engineering, deep research, scientific tasks, and document creation. It is particularly strong in long-horizon agentic workflows, including tasks that require sustained reasoning, tool orchestration, and computer and browser use, making it well suited for complex autonomous workflows and production-grade knowledge work. | Gemini 3.8 Flash is Google's most intelligent Flash-class model, delivering significant improvements over Gemini 3.7 Flash across software engineering, agentic workflows, and complex multi-step reasoning. Designed to combine strong capability with Flash-tier efficiency, it is well suited for coding assistants, autonomous agents, and high-throughput production workflows that require responsive performance without sacrificing reasoning quality. | Tencent Hy4 Preview is a Mixture-of-Experts (MoE) model from Tencent, featuring 770B total parameters with 49B activated per token. It is designed for coding agents, complex tool-driven workflows, and professional productivity tasks that require strong planning and reliable execution. Optimized for context continuity and sustained multi-step work, Hy4 Preview is well suited for long-horizon coding, agentic automation, tool orchestration, and complex real-world workflows. | — |