LFM2.5-2.6B (free) vs GPT-5.6 Sol
Side-by-side API pricing and Artificial Analysis performance for LFM2.5-2.6B (free) (Liquid AI) and GPT-5.6 Sol (OpenAI). Green cells mark the better value in each row.
Prices updated Aug 12, 2026, 10:56 AM UTC · refreshed hourly
| LFM2.5-2.6B (free) Liquid AI | GPT-5.6 Sol OpenAI | |
|---|---|---|
| Pricing | ||
| Input $/1M | Free | $5.00 |
| Output $/1M | Free | $30.00 |
| Blended $/1M (3:1) | Free | $11.25 |
| RAG example (30K in / 2K out) | $0 | $0.21 |
| Quality & speed | ||
| Intelligence Index | — | 60.9 |
| Coding Index | — | 77.4 |
| Agentic Index | — | 57.8 |
| Output speed (tok/s) | — | 66 |
| Time to first token | — | 96.45s |
| Specs | ||
| Context window | 128K | 1.05M |
| Input modalities | text | file, image, text |
FAQ
Which is cheaper, LFM2.5-2.6B (free) or GPT-5.6 Sol?
LFM2.5-2.6B (free) has the lower blended API price at Free per 1M tokens (3:1 input:output mix), versus $11.25 for the other model. Prices are live from OpenRouter and refresh about hourly.
Which is better for RAG workloads?
For a typical RAG request (30K input / 2K output tokens), LFM2.5-2.6B (free) costs about $0 per request versus $0.21. Also compare context windows: LFM2.5-2.6B (free) offers 128K and GPT-5.6 Sol offers 1.05M.
Which scores higher on Artificial Analysis benchmarks?
GPT-5.6 Sol leads on the Artificial Analysis Intelligence Index (60.9 vs —). Check coding and agentic indices on this page for workload-specific tradeoffs.