Compare models
Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.
- Claude Fable 5.1AnthropicRemove
- Perceptron Mk1.5PerceptronRemove
- Hy4 previewTencentRemove
- Kimi K3.1 ProMoonShot AIRemove
4 is the maximum. Remove one to add another.
| Attribute | Claude Fable 5.1claude-fable-5.1 | Perceptron Mk1.5perceptron-mk1.5 | Hy4 previewhy4-preview | Kimi K3.1 Prokimi-k3.1-pro |
|---|---|---|---|---|
| Pricing | ||||
| Input | $10.00 / 1M | $0.15 / 1M | $0.834 / 1M | $2.00 / 1M |
| Output | $50.00 / 1M | $1.50 / 1M | $2.50 / 1M | $10.00 / 1M |
| Cache Write (5m) | $12.50 / 1M | $0.15 / 1M | $0.834 / 1M | $2.00 / 1M |
| Cache Write (1h) | $20.00 / 1M | $0.15 / 1M | $0.834 / 1M | $2.00 / 1M |
| Cache Read | $0.25 / 1M | $0.15 / 1M | $0.834 / 1M | $2.00 / 1M |
| Web Search | $0 / 1M | $0 / 1M | $0 / 1M | $0 / 1M |
| Context | ||||
| Max context | 1M | 36.9K | 1M | 1M |
| Max output | N/A | N/A | N/A | N/A |
| Capabilities | ||||
| Vision | Yes | No | Yes | Yes |
| Function Calling | Yes | No | Yes | Yes |
| JSON Mode | Yes | No | Yes | Yes |
| Streaming | Yes | Yes | Yes | Yes |
| Catalogue | ||||
| Provider | Anthropic | Perceptron | Tencent | MoonShot AI |
| Category | chat | chat | chat | chat |
| Charge type | Pay As You Go | Pay As You Go | Pay As You Go | Pay As You Go |
| Released | — | 2026-09-25 | — | — |
| Description | ||||
| Summary | Claude Fable 5.1 is an upgraded version of Fable 5, delivering broad improvements with particularly strong gains in agentic coding, long-running workflows, and professional knowledge work. It excels at large code refactors, front-end and visual code generation, financial analysis, and complex analytical tasks. Compared with Fable 5, it also produces more concise plans and summaries while maintaining strong performance across extended tasks, making it a natural upgrade for existing Fable workflows and a strong option alongside Opus 5 for reasoning-intensive applications. | Perceptron Mk1.5 chat model that accepts audio input. Audio and text input are billed per token. | Tencent Hy4 Preview is a Mixture-of-Experts (MoE) model from Tencent, featuring 770B total parameters with 49B activated per token. It is designed for coding agents, complex tool-driven workflows, and professional productivity tasks that require strong planning and reliable execution. Optimized for context continuity and sustained multi-step work, Hy4 Preview is well suited for long-horizon coding, agentic automation, tool orchestration, and complex real-world workflows. | Kimi K3.1 Pro is Moonshot AI's flagship open-weight multimodal reasoning model, building on Kimi K3 with enhanced post-training for advanced reasoning and autonomous task execution. It features a 1M-token context window and native image and video understanding, enabling complex, long-context multimodal workflows. Optimized for long-horizon coding, 3D creation, financial research, and end-to-end agentic knowledge work, Kimi K3.1 Pro is well suited for autonomous software engineering, multimodal analysis, and complex professional workflows that require sustained reasoning and reliable execution. |