Poolside: Laguna S 2.1 alternatives
Ranked by capability overlap, similar context window, and similar price tier. Cross-vendor options are weighted higher than same-provider alternatives.
See also: Poolside: Laguna S 2.1 model details · Poolside provider page
Top 15 alternatives
| # | Model | Provider | Why | Context | Input price / 1M | Compare |
|---|---|---|---|---|---|---|
| 1 | DeepSeek: DeepSeek V4 Flash 0423 | DeepSeek | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.09 Budget | vs → |
| 2 | DeepSeek: DeepSeek V4 Flash 0731 | DeepSeek | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.09 Budget | vs → |
| 3 | DeepSeek: DeepSeek V4 Pro | DeepSeek | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.43 Budget | vs → |
| 4 | Google: Gemini 2.5 Flash | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.30 Budget | vs → | |
| 5 | Google: Gemini 2.5 Flash Lite | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.10 Budget | vs → | |
| 6 | Google: Gemini 2.5 Flash Lite Preview 09-2025 | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.10 Budget | vs → | |
| 7 | Google: Gemini 3.1 Flash Lite | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.25 Budget | vs → | |
| 8 | Google: Gemini 3.1 Flash Lite Preview | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.25 Budget | vs → | |
| 9 | Google: Gemini 3.5 Flash Lite | shares reasoning, tool-use · similar price tier | 1.0M Ultra context (1M+) | $0.30 Budget | vs → | |
| 10 | OpenAI: GPT-5.6 Luna | OpenAI | shares reasoning, tool-use · similar price tier | 1.1M Ultra context (1M+) | $0.10 Budget | vs → |
| 11 | OpenAI: GPT-5.6 Luna Pro | OpenAI | shares reasoning, tool-use · similar price tier | 1.1M Ultra context (1M+) | $0.10 Budget | vs → |
| 12 | Qwen: Qwen Plus 0728 (thinking) | Qwen | shares reasoning, tool-use · similar price tier | 1M Ultra context (1M+) | $0.40 Budget | vs → |
| 13 | Qwen: Qwen3.5 Plus 2026-02-15 | Qwen | shares reasoning, tool-use · similar price tier | 1M Ultra context (1M+) | $0.26 Budget | vs → |
| 14 | Qwen: Qwen3.5 Plus 2026-04-20 | Qwen | shares reasoning, tool-use · similar price tier | 1M Ultra context (1M+) | $0.30 Budget | vs → |
| 15 | Qwen: Qwen3.5-Flash | Qwen | shares reasoning, tool-use · similar price tier | 1M Ultra context (1M+) | $0.07 Budget | vs → |