LTX-2.3 ProvsLTX-2.3 Fast

LTX-2.3 Pro leads the overall Podium Score by 2.9 points (89.1 vs 86.2).Category wins: LTX-2.3 Pro 5 — 0 LTX-2.3 Fast.LTX-2.3 Fast is the cheaper pick ($0.05/M vs $0.12/M per 1M output tokens). LTX-2.3 Fast is faster (60 t/s vs 18 t/s).

Open in Compare Tool →View LTX-2.3 ProView LTX-2.3 Fast
LTX-2.3 ProDrag slider or hover to compareLTX-2.3 Fast
LTX-2.3 Fast
86.2
Coding: 0.0 · Speed: 60 t/s
Output Price: $0.05/M
LTX-2.3 Pro
89.1
Coding: 0.0 · Speed: 18 t/s
Output Price: $0.12/M
Quick VerdictAggregated 2026 Benchmark Analysis

LTX-2.3 Pro is rated higher overall with a Podium Score of 89.1 (vs 86.2 for LTX-2.3 Fast). In head-to-head domain evaluations, LTX-2.3 Pro outperforms in 5 of 7 benchmark categories.

Coding & Engineering
LTX-2.3 Pro (0.0)
Inference Speed
LTX-2.3 Fast (60 t/s)
Cost Efficiency
LTX-2.3 Fast ($0.05/M)
API Price / 1M (in · out)
LTX-2.3 Pro $0.12/M · $0.12/M — LTX-2.3 Fast $0.05/M · $0.05/M

Choose LTX-2.3 Pro for vision and multimodal apps, and LTX-2.3 Fast for cost-sensitive workloads.

MetricLTX-2.3 ProLTX-2.3 Fast
Podium Score89.1 ▲86.2
Arena Elo1425 ▲1385
Intelligence Index89.0 ▲86.0
Coding0.00.0
Math0.00.0
Reasoning38.0 ▲30.0
Agentic22.0 ▲20.0
Knowledge50.0 ▲45.0
Multimodal97.0 ▲93.0
Long-context40.0 ▲35.0
Output speed18 t/s60 t/s ▲
Output price$0.12/M$0.05/M ▲
Context window64K64K
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: LTX-2.3 Pro vs Claude Mythos · LTX-2.3 Pro vs Claude 5.5 Sonnet · LTX-2.3 Pro vs Kimi K3.1 Pro · LTX-2.3 Pro vs Eleven Multilingual v3
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