Cheapest models
Ranked by blended API price (75% input + 25% output, USD per 1M tokens). Free promotional listings excluded.
Ranked by blended API price (75% input + 25% output, USD per 1M tokens). Free promotional listings excluded. Source: OpenRouter. Variants (reasoning effort, batch) are folded into one row.
| # | Model | Capability | Reasoning | Coding | Context | $/M | Weights | Released |
|---|---|---|---|---|---|---|---|---|
| 251 | o3 Mini HighOpenAI | — | — | — | 200K | $1.93 | — | 12 Feb 2025 |
| 252 | o4 Mini HighOpenAI | — | — | — | 200K | $1.93 | — | 16 Apr 2025 |
| 253 | Palmyra X5Writer | — | — | — | 1.04M | $1.95 | — | 21 Jan 2026 |
| 254 | DeepSeek V4 Pro 0813DeepSeek | 155.4 | 91.7 | — | 1.05M | $1.98 | Open | 13 Aug 2026 |
| 255 | Muse Spark 1.3NEWMeta | 156.9 | — | — | 1.05M | $2.00 | Closed | 2 Sep 2026 |
| 256 | Muse Spark 1.2Meta | 155.2 | — | — | 1.05M | $2.00 | Closed | 5 Aug 2026 |
| 257 | Muse Spark 1.1Meta | 154.3 | — | 53.3 | 1.05M | $2.00 | Closed | 9 Jul 2026 |
| 258 | Claude Sonnet 5batchAnthropic · +1 variant | — | — | — | 1M | $2.00 | — | 30 Jun 2026 |
| 259 | Claude Sonnet 5.5NEWbatchAnthropic · +1 variant | — | — | — | 1M | $2.00 | — | 28 Sep 2026 |
| 260 | GPT-5.6 SolbatchOpenAI · +1 variant | — | — | — | 1.05M | $2.00 | — | 9 Jul 2026 |
| 261 | GPT-5.6 Sol ProbatchOpenAI · +1 variant | — | — | — | 1.05M | $2.00 | — | 9 Jul 2026 |
| 262 | GPT-6 SolNEWbatchOpenAI · +1 variant | — | — | — | 1.05M | $2.00 | — | 22 Sep 2026 |
| 263 | GPT-6 Sol ProNEWbatchOpenAI · +1 variant | — | — | — | 1.05M | $2.00 | — | 22 Sep 2026 |
| 264 | GPT-6.1 SolNEWbatchOpenAI · +1 variant | — | — | — | 1.05M | $2.00 | — | 29 Sep 2026 |
| 265 | GPT-6.1 Sol ProNEWbatchOpenAI · +1 variant | — | — | — | 1.05M | $2.00 | — | 29 Sep 2026 |
| 266 | GLM 5.1Z.ai (Zhipu AI) | 149.9 | 89.9 | — | 205K | $2.15 | Open | 7 Apr 2026 |
| 267 | GPT-4obatchOpenAI · +1 variant | — | — | — | 128K | $2.19 | — | 13 May 2024 |
| 268 | Qwen3.7 MaxAlibaba (Qwen) | 153.7 | 90.9 | — | 1M | $2.21 | Closed | 19 May 2026 |
| 269 | Gemini 3.1 Pro PreviewbatchGoogle · +1 variant | — | — | — | 1.05M | $2.25 | — | 19 Feb 2026 |
| 270 | GPT-5.6 TerrabatchOpenAI · +1 variant | — | — | — | 1.05M | $2.25 | — | 9 Jul 2026 |
| 271 | GPT-5.6 Terra ProbatchOpenAI · +1 variant | — | — | — | 1.05M | $2.25 | — | 9 Jul 2026 |
| 272 | Qwen3.6 Max PreviewAlibaba (Qwen) | — | — | — | 262K | $2.31 | — | 27 Apr 2026 |
| 273 | GPT-5 Image MiniOpenAI | — | — | — | 400K | $2.38 | — | 16 Oct 2025 |
| 274 | GPT-5.2batchOpenAI · +1 variant | — | — | — | 400K | $2.41 | — | 10 Dec 2025 |
| 275 | GPT-5.4batchOpenAI · +1 variant | — | — | — | 1.05M | $2.81 | — | 5 Mar 2026 |
| 276 | Grok 4.6xAI | 156.5 | 94.0 | 65.2 | 500K | $3.00 | Closed | 12 Aug 2026 |
| 277 | Qwen3.8 Max (0902)NEWAlibaba (Qwen) | 155.3 | — | — | 1M | $3.00 | Closed | 1 Sep 2026 |
| 278 | Grok 4.5xAI | 154.0 | 93.4 | 53.8 | 500K | $3.00 | Closed | 8 Jul 2026 |
| 279 | Mistral LargeMistral AI | 122.0 | 38.8 | — | 128K | $3.00 | Closed | 26 Feb 2024 |
| 280 | Claude Sonnet 4.5batchAnthropic · +1 variant | — | — | — | 1M | $3.00 | — | 29 Sep 2025 |
| 281 | Claude Sonnet 4.6batchAnthropic · +1 variant | — | — | — | 1M | $3.00 | — | 17 Feb 2026 |
| 282 | Fugu MaxNEWSakana AI | — | — | — | 1M | $3.00 | — | 11 Sep 2026 |
| 283 | Grok 4.7NEWxAI | — | — | — | 500K | $3.00 | — | 21 Sep 2026 |
| 284 | Mistral Large 2407Mistral AI | — | — | — | 131K | $3.00 | — | 19 Nov 2024 |
| 285 | Mixtral 8x22B InstructMistral AI | — | — | — | 66K | $3.00 | Open | 17 Apr 2024 |
| 286 | Qwen3.8 2.4T A95BAlibaba (Qwen) | — | — | — | 1.05M | $3.00 | Open | 12 Aug 2026 |
| 287 | Magnum v4 72Banthracite-org | — | — | — | 33K | $3.13 | Open | 22 Oct 2024 |
| 288 | GPT-3.5 Turbo 16kOpenAI | — | — | — | 16K | $3.25 | — | 28 Aug 2023 |
| 289 | Gemini 2.5 Pro Preview 06-05Google | — | — | — | 1.05M | $3.44 | — | 5 Jun 2025 |
| 290 | GPT-5.1-CodexOpenAI | — | — | — | 400K | $3.44 | — | 13 Nov 2025 |
| 291 | GPT-5.1-Codex-MaxOpenAI | — | — | — | 400K | $3.44 | — | 4 Dec 2025 |
| 292 | Sonar Deep ResearchPerplexity | — | — | — | 128K | $3.50 | — | 7 Mar 2025 |
| 293 | Sonar Reasoning ProPerplexity | — | — | — | 128K | $3.50 | — | 7 Mar 2025 |
| 294 | Aion 3.5NEWAionLabs | — | — | — | 262K | $3.75 | — | 23 Sep 2026 |
| 295 | Aion-3.0AionLabs | — | — | — | 131K | $3.75 | — | 7 Jul 2026 |
| 296 | ParetoNEWunbiased | — | — | — | 262K | $3.75 | — | 17 Sep 2026 |
| 297 | Claude Opus 5.5NEWbatchAnthropic · +1 variant | — | — | — | 1M | $4.00 | — | 22 Sep 2026 |
| 298 | GLM 5.3 PrimeNEWZ.ai (Zhipu AI) | — | — | — | 1M | $4.30 | — | 23 Sep 2026 |
| 299 | Command ACohere | — | — | — | 256K | $4.38 | Open | 13 Mar 2025 |
| 300 | GPT AudioOpenAI | — | — | — | 128K | $4.38 | — | 19 Jan 2026 |
— means no published score from that source yet · click a model for every benchmark with its source
New - awaiting independent evaluation
All new models →- GPT-6.1 SolOpenAI · 29 Sep 2026 · AA 51.8 · 1.05M · $4.00/M
- GPT-6.1 Sol ProOpenAI · 29 Sep 2026 · 1.05M · $4.00/M
- Claude Sonnet 5.5Anthropic · 28 Sep 2026 · AA 56 · 1M · $4.00/M
- Qwen3.8 Max PrimeAlibaba (Qwen) · 23 Sep 2026 · 1M · $6.00/M
- GPT-6 SolOpenAI · 22 Sep 2026 · AA 47.5 · 1.05M · $4.00/M
- GPT-6 LunaOpenAI · 22 Sep 2026 · AA 37.3 · 1.05M · $0.20/M
- GPT-6 Sol ProOpenAI · 22 Sep 2026 · 1.05M · $4.00/M
- GPT-6 Luna ProOpenAI · 22 Sep 2026 · 1.05M · $0.20/M
Not ranked until an independent evaluator (Epoch AI) publishes scores. We don't use vendor-reported benchmark claims for rankings.
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