AI Model Comparison
Side-by-side comparison of pricing, context window, benchmarks, capabilities, and license. Every figure comes from the developer's own pages, last checked on ; each model's page lists its sources. A figure we could not source shows as a dash.
Model A — Upstage
Solar Pro 4 is Upstage’s flagship model, released on August 6, 2026, built for agentic use and document-based work, coding and business tasks. It supports a 512K context, up to 128K output tokens and a reasoning mode. It is available through Upstage’s console and on-premises.
Model B — Tencent
Hy3 is Tencent Hy's hybrid fast-and-slow-thinking Mixture-of-Experts model with 295 billion total and 21 billion active parameters and up to 256K context, released with open weights under Apache 2.0. Tencent says it is used across WorkBuddy/CodeBuddy, Yuanbao, Marvis and ima.
| Property | Solar Pro 4 | Hy3 |
|---|---|---|
| Released | Aug 6, 2026 | Jul 6, 2026 |
| Developer | Upstage | Tencent |
| Type | llm | llm |
| License | proprietary | open-weight |
| Context window | — | — |
| Parameters | — | 295B total, 21B active (MoE), plus 3.8B MTP layer |
| Developer status | — | — |
| Input $/M tokens | $0.15 | $0.132 |
| Output $/M tokens | $0.60 | $0.528 |
Bold green values indicate the winner on that dimension where comparison is meaningful (lower price wins; bigger context wins; more open license wins; newer date wins). Prices are the ones each developer lists today; a model it no longer prices has none.
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