Source: Epoch AI (CC BY 4.0). ECI is Epoch's item-response model over many benchmarks; each model page shows its 90% confidence interval.
Only models with both an ECI score and an OpenRouter price. Normalisation: 75% input + 25% output price. Click a point to open the model.
| # | Model | ECI ↓ | Context | In $/M | Weights | Released |
|---|---|---|---|---|---|---|
| 1 | Gemini 3.7 Flash Google· reasoning | 157.7 | 1.05M | $0.75 | Closed | 13 Aug 2026 |
| 2 | Gemini 3.8 Flash Google· reasoning | 157.1 | 1.05M | $0.75 | Closed | 2 Sep 2026 |
| 3 | Gemini 3.5 Flash Google· reasoning | 154.6 | 1.05M | $1.50 | Closed | 19 May 2026 |
| 4 | Gemini 3.6 Flash Google· reasoning | 154.4 | 1.05M | $0.75 | Closed | 21 Jul 2026 |
| 5 | Inkling Small Thinking Machines Lab· reasoning | 150.1 | 524K | $0.45 | Open source | 15 Jul 2026 |
| 6 | Inkling Thinking Machines Lab· reasoning | 148.6 | 524K | $1.00 | Open source | 15 Jul 2026 |
| 7 | Gemini 3.5 Flash Lite Google· reasoning | 145.1 | 1.05M | $0.30 | Closed | 21 Jul 2026 |
| 8 | Gemini 3.1 Flash Lite Google· reasoning | 144.4 | 1.05M | $0.25 | Closed | 3 Mar 2026 |
| 9 | MiMo-V2.6-Pro Xiaomi· reasoning | — | 1.05M | $0.43 | Open source | 21 Sep 2026 |
| 10 | Gemini 3.8 Flash (batch) Google· reasoning | — | 1.05M | $0.38 | ? | 2 Sep 2026 |
| 11 | Gemini 3.7 Flash (batch) Google· reasoning | — | 1.05M | $0.38 | ? | 13 Aug 2026 |
| 12 | MiMo-V2.6-Flash Xiaomi· reasoning | — | 1.05M | $0.14 | Open source | 21 Sep 2026 |
| 13 | Gemini 3.6 Flash (batch) Google· reasoning | — | 1.05M | $0.38 | ? | 21 Jul 2026 |
| 14 | Gemini 3.5 Flash (batch) Google· reasoning | — | 1.05M | $0.75 | ? | 19 May 2026 |
| 15 | Gemini 3.1 Pro Preview Google· reasoning | — | 1.05M | $2.00 | ? | 19 Feb 2026 |
| 16 | Gemini 3.1 Pro Preview (batch) Google· reasoning | — | 1.05M | $1.00 | ? | 19 Feb 2026 |
| 17 | Gemini 3.5 Flash Lite (batch) Google· reasoning | — | 1.05M | $0.15 | ? | 21 Jul 2026 |
| 18 | Gemini 2.5 Pro Google· reasoning | — | 1.05M | $1.25 | ? | 17 Jun 2025 |
| 19 | Gemini 2.5 Pro (batch) Google· reasoning | — | 1.05M | $0.63 | ? | 17 Jun 2025 |
| 20 | Gemini 3.1 Flash Lite Preview Google· reasoning | — | 1.05M | $0.25 | ? | 3 Mar 2026 |
| 21 | Jev Router | — | 1M | — | ? | 25 Sep 2026 |
| 22 | Perceptron Mk1.5 Perceptron· reasoning | — | 37K | $0.15 | ? | 25 Sep 2026 |
| 23 | Qwen3.8 Omni Flash Alibaba (Qwen)· reasoning | — | 1M | $0.15 | ? | 21 Sep 2026 |
| 24 | MiMo-V2.6-Pro-UltraSpeed Xiaomi· reasoning | — | 1.05M | $4.35 | ? | 21 Sep 2026 |
| 25 | Gemini 3.1 Flash Lite (batch) Google· reasoning | — | 1.05M | $0.13 | ? | 7 May 2026 |
| 26 | MiMo-V2.5 Xiaomi· reasoning | — | 1.05M | $0.14 | Open source | 22 Apr 2026 |
| 27 | Lyria 3 Pro Preview | — | 1.05M | $0 | ? | 30 Mar 2026 |
| 28 | Lyria 3 Clip Preview | — | 1.05M | $0 | ? | 30 Mar 2026 |
| 29 | Gemini 3.1 Pro Preview Custom Tools Google· reasoning | — | 1.05M | $2.00 | ? | 25 Feb 2026 |
| 30 | GPT Audio | — | 128K | $2.50 | ? | 19 Jan 2026 |
| 31 | GPT Audio Mini | — | 128K | $0.60 | ? | 19 Jan 2026 |
| 32 | Gemini 3 Flash Preview Google· reasoning | — | 1.05M | $0.50 | ? | 17 Dec 2025 |
| 33 | Gemini 3 Flash Preview (batch) Google· reasoning | — | 1.05M | $0.25 | ? | 17 Dec 2025 |
| 34 | Voxtral Small 24B 2507 | — | 33K | $0.10 | Open source | 30 Oct 2025 |
| 35 | Gemini 2.5 Flash Lite Google· reasoning | — | 1.05M | $0.10 | ? | 22 Jul 2025 |
| 36 | Gemini 2.5 Flash Lite (batch) Google· reasoning | — | 1.05M | $0.050 | ? | 22 Jul 2025 |
| 37 | Gemini 2.5 Flash Google· reasoning | — | 1.05M | $0.30 | ? | 17 Jun 2025 |
| 38 | Gemini 2.5 Flash (batch) Google· reasoning | — | 1.05M | $0.15 | ? | 17 Jun 2025 |
| 39 | Gemini 2.5 Pro Preview 06-05 Google· reasoning | — | 1.05M | $1.25 | ? | 5 Jun 2025 |