May 28th update to the [original DeepSeek R1](/deepseek/deepseek-r1) Performance on par with [OpenAI o1](/openai/o1), but open-sourced and with fully open reasoning tokens. It's 671B parameters in size, with 37B active in an inference pass.…
Model details →DeepSeek: R1 0528 vs Inception: Mercury 2
Inception: Mercury 2 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
Mercury 2 is an extremely fast reasoning LLM, and the first reasoning diffusion LLM (dLLM). Instead of generating tokens sequentially, Mercury 2 produces and refines multiple tokens in parallel, achieving >1,000 tokens/sec on standard GPUs.…
Model details →Side-by-side comparison
| Capability | DeepSeek: R1 0528 | Inception: Mercury 2 | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 164K | 128K | 🏆 DeepSeek: R1 0528 |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $0.45 | $0.25 | 🏆 Inception: Mercury 2 |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $2.15 | $0.75 | 🏆 Inception: Mercury 2 |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | — | — | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is DeepSeek: R1 0528 better than Inception: Mercury 2?
Inception: Mercury 2 wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between DeepSeek: R1 0528 and Inception: Mercury 2?
Input: $0.45 vs $0.25 per 1M tokens. Output: $2.15 vs $0.75 per 1M tokens.
What context windows do DeepSeek: R1 0528 and Inception: Mercury 2 support?
DeepSeek: R1 0528 supports up to 164K tokens. Inception: Mercury 2 supports up to 128K tokens.
Do both DeepSeek: R1 0528 and Inception: Mercury 2 support tool calling?
DeepSeek: R1 0528: yes. Inception: Mercury 2: yes.