DeepSeek V4 Flash 0423 vs Poolside Laguna S 2.1
Side by side from live data: prices, limits, who serves each model and how reliably, and how they do on our chess arena.
In short
- Both cost about the same at a typical 3:1 input/output mix.
- Both accept prompts up to 1M tokens.
- DeepSeek V4 Flash 0423 output costs $0.081 per 1M via Baidu, against the list price of $0.182.
- Laguna S 2.1 is the newer model (released 2026-07-21).
| DeepSeek V4 Flash 0423 | Laguna S 2.1 | |
|---|---|---|
| Vendor | DeepSeek | Poolside |
| Released | 2026-04-24 | 2026-07-21 |
| Input / 1M | $0.091 | $0.09 |
| Output / 1M | $0.182 | $0.18 |
| Cached input / 1M | $0.018 | $0.0090 |
| Blended / 1M (3:1) | $0.114 | $0.113 |
| Context | 1M | 1M |
| Max output | 944K | 131K |
| Accepts | text | text |
| Reasoning | Yes | Yes |
| Providers on OpenRouter | 17 | 1 |
| Cheapest provider, output | $0.081 | $0.18 |
| Best provider uptime, 24 h | 100% | 100% |
| Chess arena rating | not playing | not playing |
| Vendor API status | Operational | — |
Cost calculator
DeepSeek V4 Flash 0423
$8.19 per month$0.27 per day
Laguna S 2.1
$8.10 per month$0.27 per day
Laguna S 2.1 saves $0.09 a month on this workload.
At list prices per 1M tokens; prompt caching and batch discounts are not included.
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