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 |
|---|---|---|---|---|---|---|
| 301 | MiMo-V2.5-Pro Xiaomi· reasoning | — | 1.05M | $0.43 | Open source | 22 Apr 2026 |
| 302 | Hy3 preview Tencent· reasoning | — | 262K | $0.18 | Open source | 22 Apr 2026 |
| 303 | Grok 4.3 xAI· reasoning | — | 1M | $1.25 | ? | 30 Apr 2026 |
| 304 | Grok 4.3 (batch) xAI· reasoning | — | 1M | $1.00 | ? | 30 Apr 2026 |
| 305 | Ling 3.0 Flash VL inclusionAI (Ant Group)· reasoning | — | 262K | $0.021 | Open source | 10 Sep 2026 |
| 306 | GPT-5.4 Mini (batch) OpenAI· reasoning | — | 400K | $0.38 | ? | 17 Mar 2026 |
| 307 | Ling 3.0 Flash Fin inclusionAI (Ant Group)· reasoning | — | 262K | $0.060 | ? | 27 Aug 2026 |
| 308 | Gemini 3.5 Flash Lite (batch) Google· reasoning | — | 1.05M | $0.15 | ? | 21 Jul 2026 |
| 309 | GPT-5.4 Nano (batch) OpenAI· reasoning | — | 400K | $0.10 | ? | 17 Mar 2026 |
| 310 | Claude Sonnet 4.5 (batch) Anthropic· reasoning | — | 1M | $1.50 | ? | 29 Sep 2025 |
| 311 | LongCat 2.0 Meituan· reasoning | — | 1.05M | $0.30 | Open source | 20 Jul 2026 |
| 312 | Qwen3.6 35B A3B Alibaba (Qwen)· reasoning | — | 262K | $0.15 | Open source | 27 Apr 2026 |
| 313 | Claude Haiku 4.5 (batch) Anthropic· reasoning | — | 200K | $0.50 | ? | 15 Oct 2025 |
| 314 | GPT-5 Mini (batch) OpenAI· reasoning | — | 400K | $0.13 | ? | 7 Aug 2025 |
| 315 | Gemini 2.5 Pro Google· reasoning | — | 1.05M | $1.25 | ? | 17 Jun 2025 |
| 316 | Gemini 2.5 Pro (batch) Google· reasoning | — | 1.05M | $0.63 | ? | 17 Jun 2025 |
| 317 | Gemini 3.1 Flash Lite Preview Google· reasoning | — | 1.05M | $0.25 | ? | 3 Mar 2026 |
| 318 | Qwen3.5-122B-A10B Alibaba (Qwen)· reasoning | — | 262K | $0.26 | Open source | 25 Feb 2026 |
| 319 | DeepSeek V3.1 Terminus DeepSeek· reasoning | — | 164K | $0.27 | Open source | 22 Sep 2025 |
| 320 | Mistral Medium 3.5 (batch) Mistral AI· reasoning | — | 262K | $0.75 | ? | 30 Apr 2026 |
| 321 | Command A | — | 256K | $2.50 | Open source | 13 Mar 2025 |
| 322 | Nemotron 3.5 Lightning NVIDIA· reasoning | — | 1M | $0.080 | Open source | 11 Aug 2026 |
| 323 | Nemotron 3 Super NVIDIA· reasoning | — | 262K | $0.080 | Open source | 11 Mar 2026 |
| 324 | Qwen3 235B A22B Thinking 2507 Alibaba (Qwen)· reasoning | — | 131K | $0.23 | Open source | 25 Jul 2025 |
| 325 | Mercury 2.5 Inception Labs· reasoning | — | 260K | $0.040 | ? | 8 Sep 2026 |
| 326 | gpt-oss-120b (batch) OpenAI· reasoning | — | 131K | $0.030 | Open source | 5 Aug 2025 |
| 327 | Mistral Small 4 Mistral AI· reasoning | — | 262K | $0.15 | Open source | 16 Mar 2026 |
| 328 | Mistral Small 4 (batch) Mistral AI· reasoning | — | 262K | $0.075 | Open source | 16 Mar 2026 |
| 329 | Granite 4.2 8B IBM· reasoning | — | 131K | $0.060 | Open source | 31 Aug 2026 |
| 330 | o3 Mini High OpenAI· reasoning | — | 200K | $1.10 | ? | 12 Feb 2025 |
| 331 | Trinity Large Thinking Arcee AI· reasoning | — | 262K | $0.25 | Open source | 1 Apr 2026 |
| 332 | Qwen3 30B A3B Thinking 2507 Alibaba (Qwen)· reasoning | — | 82K | $0.20 | Open source | 28 Aug 2025 |
| 333 | DeepSeek V3 0324 | — | 164K | $0.29 | Open source | 24 Mar 2025 |
| 334 | Mistral Large 3 2512 | — | 262K | $0.50 | ? | 1 Dec 2025 |
| 335 | Mistral Large 3 2512 (batch) | — | 262K | $0.25 | ? | 1 Dec 2025 |
| 336 | Qwen3 Coder Next | — | 262K | $0.12 | Open source | 4 Feb 2026 |
| 337 | Mistral Medium 3.1 | — | 131K | $0.40 | ? | 13 Aug 2025 |
| 338 | Mistral Medium 3.1 (batch) | — | 131K | $0.20 | ? | 13 Aug 2025 |
| 339 | gpt-oss-20b (batch) OpenAI· reasoning | — | 131K | $0.024 | Open source | 5 Aug 2025 |
| 340 | Nemotron 3 Nano 30B A3B NVIDIA· reasoning | — | 262K | $0.050 | Open source | 14 Dec 2025 |
| 341 | Devstral 2 2512 | — | 262K | $0.40 | Open source | 9 Dec 2025 |
| 342 | Solar Pro 3 Upstage· reasoning | — | 131K | $0.15 | ? | 27 Jan 2026 |
| 343 | Ministral 3 14B 2512 | — | 262K | $0.20 | Open source | 2 Dec 2025 |
| 344 | Ministral 3 8B 2512 | — | 262K | $0.15 | Open source | 2 Dec 2025 |
| 345 | Ministral 3 8B 2512 (batch) | — | 262K | $0.075 | Open source | 2 Dec 2025 |
| 346 | Ministral 3 3B 2512 | — | 131K | $0.10 | Open source | 2 Dec 2025 |
| 347 | Claude Sonnet 5.5 Anthropic· reasoning | — | 1M | $2.00 | ? | 28 Sep 2026 |
| 348 | Claude Sonnet 5.5 (batch) Anthropic· reasoning | — | 1M | $1.00 | ? | 28 Sep 2026 |
| 349 | Jev Router | — | 1M | — | ? | 25 Sep 2026 |
| 350 | Perceptron Mk1.5 Perceptron· reasoning | — | 37K | $0.15 | ? | 25 Sep 2026 |
| 351 | Ember-1 Fireworks AI· reasoning | — | 1.05M | $3.00 | ? | 24 Sep 2026 |
| 352 | GLM 5.3 Prime Z.ai (Zhipu AI)· reasoning | — | 1M | $2.80 | ? | 23 Sep 2026 |
| 353 | Aion 3.5 AionLabs· reasoning | — | 262K | $3.00 | ? | 23 Sep 2026 |
| 354 | Solar Mini 4 Upstage· reasoning | — | 524K | $0.050 | ? | 23 Sep 2026 |
| 355 | Qwen3.8 Max Prime Alibaba (Qwen)· reasoning | — | 1M | $4.00 | ? | 23 Sep 2026 |
| 356 | Aion 3.5 Mini AionLabs· reasoning | — | 262K | $0.70 | ? | 23 Sep 2026 |
| 357 | GPT-6 Sol Pro OpenAI· reasoning | — | 1.05M | $2.00 | ? | 22 Sep 2026 |
| 358 | GPT-6 Luna Pro OpenAI· reasoning | — | 1.05M | $0.10 | ? | 22 Sep 2026 |
| 359 | GPT-6 Sol Pro (batch) OpenAI· reasoning | — | 1.05M | $1.00 | ? | 22 Sep 2026 |
| 360 | GPT-6 Luna Pro (batch) OpenAI· reasoning | — | 1.05M | $0.050 | ? | 22 Sep 2026 |
| 361 | Qwen3.8 Omni Flash Alibaba (Qwen)· reasoning | — | 1M | $0.15 | ? | 21 Sep 2026 |
| 362 | MiMo-V2.6-Pro-UltraSpeed Xiaomi· reasoning | — | 1.05M | $4.35 | ? | 21 Sep 2026 |
| 363 | Grok 4.7 (unknown) | — | — | — | Closed | 21 Sep 2026 |
| 364 | Grok 4.7 (xhigh) | — | — | — | Closed | 21 Sep 2026 |
| 365 | GLM 5.3 FlashX Z.ai (Zhipu AI)· reasoning | — | 1.05M | $0.37 | ? | 18 Sep 2026 |
| 366 | Ternary Bonsai 2 27B PrismML· reasoning | — | 262K | $0.075 | Open source | 18 Sep 2026 |
| 367 | Pareto | — | 262K | $2.50 | ? | 17 Sep 2026 |
| 368 | Schematron V2 Turbo | — | 128K | $0.030 | Open source | 12 Sep 2026 |
| 369 | Schematron V2 Small | — | 128K | $0.050 | Open source | 12 Sep 2026 |
| 370 | Fugu Max Sakana AI· reasoning | — | 1M | $2.00 | ? | 11 Sep 2026 |
| 371 | Fugu Ultra v2 Sakana AI· reasoning | — | 1M | $5.00 | ? | 11 Sep 2026 |
| 372 | SWE-2 (max) | — | — | — | Closed | 10 Sep 2026 |
| 373 | DeepSeek V4.1 Flash (unknown) | — | — | — | Open source | 9 Sep 2026 |
| 374 | Nex-N2.5-Pro Nex AGI· reasoning | — | 262K | $0.075 | Open source | 8 Sep 2026 |
| 375 | Nex-N2.5-Mini Nex AGI· reasoning | — | 262K | $0.025 | Open source | 8 Sep 2026 |
| 376 | Mercury 2.5 (unknown) | — | — | — | Closed | 8 Sep 2026 |
| 377 | GPT-6 Astra Pro OpenAI· reasoning | — | 1.05M | $10.0 | ? | 4 Sep 2026 |
| 378 | GPT-6 Astra Pro (batch) OpenAI· reasoning | — | 1.05M | $5.00 | ? | 4 Sep 2026 |
| 379 | GPT-6 Astra (none) | — | — | — | Closed | 3 Sep 2026 |
| 380 | GPT-6 Astra (low) | — | — | — | Closed | 3 Sep 2026 |
| 381 | GPT-6 Astra (medium) | — | — | — | Closed | 3 Sep 2026 |
| 382 | GPT-6 Astra (xhigh) | — | — | — | Closed | 3 Sep 2026 |
| 383 | GPT-6 Astra (pro, max) | — | — | — | Closed | 3 Sep 2026 |
| 384 | GPT-6 Astra (unknown thinking) | — | — | — | Closed | 3 Sep 2026 |
| 385 | Muse Spark 1.3 Contributor Meta· reasoning | — | 1.05M | $0.10 | ? | 2 Sep 2026 |
| 386 | Muse Spark 1.3 (xhigh) | — | — | — | Closed | 2 Sep 2026 |
| 387 | Gemini 3.8 Flash (unknown) | — | — | — | Closed | 2 Sep 2026 |
| 388 | Muse Spark 1.3 (unknown) | — | — | — | Closed | 2 Sep 2026 |
| 389 | Gemini 3.8 Flash (medium) | — | — | — | Closed | 2 Sep 2026 |
| 390 | Gemini 3.8 Flash (low) | — | — | — | Closed | 2 Sep 2026 |
| 391 | Qwen3.8 Max (0902) (xhigh) | — | — | — | Closed | 1 Sep 2026 |
| 392 | Claude Fable 5.1 (xhigh) | — | — | — | Closed | 1 Sep 2026 |
| 393 | Claude Fable 5.1 (medium) | — | — | — | Closed | 1 Sep 2026 |
| 394 | Claude Fable 5.1 (low) | — | — | — | Closed | 1 Sep 2026 |
| 395 | Claude Fable 5.1 (unknown) | — | — | — | Closed | 1 Sep 2026 |
| 396 | Hy4 preview Tencent· reasoning | — | 1.05M | $0.83 | Open source | 28 Aug 2026 |
| 397 | Tencent Hy4 preview (unknown) | — | — | — | Open source | 28 Aug 2026 |
| 398 | Qwen3.8 Flash Alibaba (Qwen)· reasoning | — | 1M | $0.15 | Open source | 26 Aug 2026 |
| 399 | Muse Spark 1.2 Contributor Meta· reasoning | — | 1.05M | $0.10 | ? | 21 Aug 2026 |
| 400 | DeepSeek V4 Flash Vision Exp DeepSeek· reasoning | — | 1.05M | $0.44 | Open source | 21 Aug 2026 |