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.
| Attribute | mai-ds-r1:freeNot in the catalogue | Muse Spark Openmuse-spark-open | GPT-6 Lunagpt-6-luna |
|---|---|---|---|
| Pricing | |||
| Input | — | $1.25 / 1M | $0.10 / 1M |
| Output | — | $4.25 / 1M | $0.50 / 1M |
| Cache Write (5m) | — | $1.25 / 1M | $0.10 / 1M |
| Cache Write (1h) | — | $1.25 / 1M | $0.10 / 1M |
| Cache Read | — | $1.25 / 1M | $0.10 / 1M |
| Web Search | — | $0 / 1M | $0 / 1M |
| Context | |||
| Max context | — | 1M | 1.1M |
| Max output | — | N/A | N/A |
| Capabilities | |||
| Vision | — | Yes | Yes |
| Function Calling | — | Yes | Yes |
| JSON Mode | — | Yes | Yes |
| Streaming | — | Yes | Yes |
| Catalogue | |||
| Provider | — | Meta | OpenAI |
| Category | — | chat | chat |
| Charge type | — | Pay As You Go | Pay As You Go |
| Released | — | — | — |
| Description | |||
| Summary | — | Muse Spark Open is an open-weight, coding-optimized model designed for agentic software engineering workflows. It delivers strong first-attempt accuracy, reliable tool calling, and deep codebase understanding, enabling effective development across real-world repositories. Optimized for autonomous coding agents, complex code navigation, and tool-driven development, Muse Spark Open is well suited for software engineering automation, debugging, code generation, and multi-step coding workflows where accuracy and reliable execution are essential. | GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, optimized for high-volume and latency-sensitive workloads such as chat, classification, and lightweight agentic tasks. It combines low-cost, responsive inference with the GPT-6 family’s improvements in factual reliability and clear, concise communication. At higher reasoning effort, GPT-6 Luna can also handle complex software engineering and computer-use workflows that previously required a Sol-tier model, making it a versatile choice for scalable production applications that need to balance speed, cost, and capability. |