Grok 4.5 vs LFM2.5-2.6B: Specs & Benchmark Comparison
Grok 4.5 is developed by xAI, while LFM2.5-2.6B comes from Liquid AI. Grok 4.5 was released in July 2026, and LFM2.5-2.6B followed a month later in August 2026. LFM2.5-2.6B has a published size of about 3 billion parameters; xAI has not disclosed the parameter count of Grok 4.5.
We have 15 benchmark results for Grok 4.5 and 8 benchmark results for LFM2.5-2.6B, but they overlap on a single test: Tau3 Banking, where Grok 4.5 scores 33.0% against 5.7%.
Grok 4.5 is available through an API at $2 per million input tokens with a 500K-token context window. We do not track a hosted API for LFM2.5-2.6B, so pricing and context cannot be compared directly.
| Characteristic | Grok 4.5 | LFM2.5-2.6B |
|---|---|---|
| Company | xAI | Liquid AI |
| Release Date | July 16, 2026 | August 4, 2026 |
| Parameters | — | 3B |
| Multimodal | Yes | No |
| Context (input) | 500K | — |
| Input Price / 1M | $2.00 | — |
| Output Price / 1M | $6.00 | — |
| Average Score | 52.9% | 55.5% |
| Benchmarks | ||
| Tau3 Banking | 33.0% | 5.7% |
Visual Benchmark Comparison
Verdict
LFM2.5-2.6B leads in 1 out of 2 comparison categories.
Both models show comparable average scores: Grok 4.5 — 0.5, LFM2.5-2.6B — 0.6.
LFM2.5-2.6B is newer: released 8/4/2026 vs 7/16/2026.
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Frequently Asked Questions
Which is better for coding — Grok 4.5 or LFM2.5-2.6B?
Which model is cheaper — Grok 4.5 or LFM2.5-2.6B?
Which has a larger context window — Grok 4.5 or LFM2.5-2.6B?
The Grok 4.5 and LFM2.5-2.6B comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the Grok 4.5 or LFM2.5-2.6B page. See also the complete list of AI model comparisons.