GPT-6 AstravsLTX-2.3 Fast
GPT-6 Astra is tied with LTX-2.3 Fast on the Podium Score (86.2).Category wins: GPT-6 Astra 6 — 1 LTX-2.3 Fast.LTX-2.3 Fast is the cheaper pick ($0.05/M vs $50/M per 1M output tokens). GPT-6 Astra is faster (82 t/s vs 60 t/s).
GPT-6 AstraDrag slider or hover to compareLTX-2.3 Fast
Quick VerdictAggregated 2026 Benchmark Analysis
GPT-6 Astra is rated higher overall with a Podium Score of 86.2 (vs 86.2 for LTX-2.3 Fast). In head-to-head domain evaluations, GPT-6 Astra outperforms in 6 of 7 benchmark categories.
Coding & Engineering
GPT-6 Astra (67.2)
Inference Speed
GPT-6 Astra (82 t/s)
Cost Efficiency
LTX-2.3 Fast ($0.05/M)
API Price / 1M (in · out)
GPT-6 Astra $10/M · $50/M — LTX-2.3 Fast $0.05/M · $0.05/M
Choose GPT-6 Astra for long documents and large codebases, and LTX-2.3 Fast for knowledge and factual QA.
| Metric | GPT-6 Astra | LTX-2.3 Fast |
|---|---|---|
| Podium Score | 86.2 | 86.2 |
| Arena Elo | 1498 ▲ | 1385 |
| Intelligence Index | 61.0 | 86.0 ▲ |
| Coding | 67.2 ▲ | 0.0 |
| Math | 97.6 ▲ | 0.0 |
| Reasoning | 96.0 ▲ | 30.0 |
| Agentic | 72.6 ▲ | 20.0 |
| Knowledge | 31.5 | 45.0 ▲ |
| Multimodal | 98.2 ▲ | 93.0 |
| Long-context | 100.0 ▲ | 35.0 |
| Output speed | 82 t/s ▲ | 60 t/s |
| Output price | $50/M | $0.05/M ▲ |
| Context window | 1100K ▲ | 64K |
Scores aggregated from five independent leaderboards. See Methodology. More head-to-heads: GPT-6 Astra vs Claude Mythos · GPT-6 Astra vs Claude 5.5 Sonnet · GPT-6 Astra vs Kimi K3.1 Pro · GPT-6 Astra vs Eleven Multilingual v3