LTX-2.3 FastvsClaude Opus 5

LTX-2.3 Fast leads the overall Podium Score by 4.8 points (86.2 vs 81.4).Category wins: LTX-2.3 Fast 1 — 3 Claude Opus 5.LTX-2.3 Fast is the cheaper pick ($0.05/M vs $25/M per 1M output tokens).

Open in Compare Tool →View LTX-2.3 FastView Claude Opus 5
LTX-2.3 FastDrag slider or hover to compareClaude Opus 5
Claude Opus 5
81.4
Coding: 70.4 · Speed: 60 t/s
Output Price: $25/M
LTX-2.3 Fast
86.2
Coding: 0.0 · Speed: 60 t/s
Output Price: $0.05/M
Quick VerdictAggregated 2026 Benchmark Analysis

LTX-2.3 Fast is rated higher overall with a Podium Score of 86.2 (vs 81.4 for Claude Opus 5). In head-to-head domain evaluations, Claude Opus 5 outperforms in 3 of 7 benchmark categories.

Coding & Engineering
Claude Opus 5 (70.4)
Inference Speed
Comparable
Cost Efficiency
LTX-2.3 Fast ($0.05/M)
API Price / 1M (in · out)
LTX-2.3 Fast $0.05/M · $0.05/M — Claude Opus 5 $5/M · $25/M

Choose LTX-2.3 Fast for knowledge and factual QA, and Claude Opus 5 for long documents and large codebases.

MetricLTX-2.3 FastClaude Opus 5
Podium Score86.2 ▲81.4
Arena Elo13851492 ▲
Intelligence Index86.0 ▲61.0
Coding0.070.4 ▲
Math0.0—
Reasoning30.082.3 ▲
Agentic20.0—
Knowledge45.0 ▲37.1
Multimodal93.0—
Long-context35.099.2 ▲
Output speed60 t/s60 t/s
Output price$0.05/M ▲$25/M
Context window64K1000K ▲
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: LTX-2.3 Fast vs Claude Mythos · LTX-2.3 Fast vs Claude 5.5 Sonnet · LTX-2.3 Fast vs Kimi K3.1 Pro · LTX-2.3 Fast vs Eleven Multilingual v3
0 / 4
Compare Now →