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 — Mistral AI
Mistral Small 4 is a mixture-of-experts model from Mistral AI, released on March 16, 2026, that brings Mistral’s instruct, reasoning (Magistral), multimodal (Pixtral) and agentic coding (Devstral) capabilities into one model, with configurable reasoning effort.
Model B — ByteDance Seed
Seed2.1 Pro is the larger model of ByteDance Seed's Seed2.1 family, which ByteDance describes as agent-capable models for real-world productivity, aimed at stronger reasoning, agentic execution and complex workflows. It is available to Doubao and Volcano Engine users as Doubao-Seed-2.1-Pro.
| Property | Mistral Small 4 | Seed2.1 Pro |
|---|---|---|
| Released | Mar 16, 2026 | Jun 23, 2026 |
| Developer | Mistral AI | ByteDance Seed |
| Type | multimodal | multimodal |
| License | open-weight | proprietary |
| Context window | — | — |
| Parameters | 119B total, 6B active per token (8B including embedding and output layers); Mixture-of-Experts with 128 experts, 4 active | — |
| Developer status | — | — |
| Input $/M tokens | $0.15 | — |
| Output $/M tokens | $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.
Programmatic access available at /api/ai/compare?a=mistral-small-4&b=seed-2-1-pro. CORS is open. Citation guidance: /about/editorial-process.