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-V3 is an open-weight mixture-of-experts language model from DeepSeek, announced on December 26, 2024, with 671B total and 37B activated parameters, trained on 14.8T tokens.
Model B — OpenAI
o3 is a reasoning model from OpenAI, released on April 16, 2025 (snapshot o3-2025-04-16). It takes text and image input and returns text.
| Property | DeepSeek-V3 | OpenAI o3 |
|---|---|---|
| Released | Dec 26, 2024 | Apr 16, 2025 |
| Developer | DeepSeek | OpenAI |
| Type | llm | reasoning |
| License | open-weight | proprietary |
| Context window | 128,000 | 200,000 |
| Parameters | 671B total, 37B active (mixture of experts) | — |
| Developer status | Retired | Deprecated |
| Input $/M tokens | — | $2.00 |
| Output $/M tokens | — | $8.00 |
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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Programmatic access available at /api/ai/compare?a=deepseek-v3&b=o3. CORS is open. Citation guidance: /about/editorial-process.