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 — Anthropic
Claude Fable 5.1 is Anthropic's model for demanding reasoning and long-horizon agentic work, released on September 1, 2026, and extends Claude Fable 5 at the same input and output prices. It takes text and image input, returns text, and uses adaptive thinking that is always on.
Model B — MiniMax
MiniMax H3 is an open-weight general-purpose video model that understands text, image, video and audio context and generates video with native stereo audio at up to 2K resolution and 15 seconds. A faster post-trained variant, MiniMax-H3-Max, is offered on the API. Its licence excludes use in the European Union, the United Kingdom, South Korea and the United States, and commercial use above US$20 million in revenue needs MiniMax’s written authorisation.
| Property | Claude Fable 5.1 | MiniMax H3 |
|---|---|---|
| Released | Sep 1, 2026 | Jul 31, 2026 |
| Developer | Anthropic | MiniMax |
| Type | reasoning | video |
| License | proprietary | open-weight |
| Context window | — | — |
| Parameters | — | 33B-parameter dense H3-Omni-Transformer (about 13B of it in AdaLN branches); text encoder uses Qwen3-VL-32B weights |
| Developer status | — | — |
| Input $/M tokens | $10.00 | — |
| Output $/M tokens | $50.00 | — |
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.
Programmatic access available at /api/ai/compare?a=claude-fable-5-1&b=minimax-h3. CORS is open. Citation guidance: /about/editorial-process.