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 — DeepSeek
DeepSeek-V4-Pro is a 1.6-trillion-parameter Mixture-of-Experts model with 49B active parameters and a one-million-token context. The API serves DeepSeek-V4-Pro-0813, the general-availability version released on 2026-08-13.
Model B — 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.
| Property | DeepSeek-V4-Pro | Solar Pro 4 |
|---|---|---|
| Released | Aug 13, 2026 | Aug 6, 2026 |
| Developer | DeepSeek | Upstage |
| Type | llm | llm |
| License | open-weight | proprietary |
| Context window | 1,000,000 | — |
| Parameters | 1.6T total, 49B active (MoE) | — |
| Developer status | — | — |
| Input $/M tokens | $1.32 | $0.15 |
| Output $/M tokens | $3.96 | $0.60 |
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.
No exclusive capabilities
Programmatic access available at /api/ai/compare?a=deepseek-v4-pro&b=solar-pro-4. CORS is open. Citation guidance: /about/editorial-process.