OpenAI API pricing and price changes
60 OpenAI models we price today. Since Mar 26, 2024 we recorded 35 list-price changes on OpenRouter: 23 cuts and 12 increases.
OpenAI models
| Model | Chat answer | In / out per 1M | Released |
|---|---|---|---|
 GPT-6.1 Sol Pro | 0.67¢$6.72 / 1,000 | $2.00 / $10.00 | Sep 29, 2026 |
GPT-6.1 Sol | 0.67¢$6.72 / 1,000 | $2.00 / $10.00 | Sep 29, 2026 |
GPT-6 Luna Pro | 0.06¢$0.59 / 1,000 | $0.10 / $0.50 | Sep 22, 2026 |
GPT-6 Luna | 0.06¢$0.59 / 1,000 | $0.10 / $0.50 | Sep 22, 2026 |
GPT-6 Sol Pro | 1.2¢$11.88 / 1,000 | $2.00 / $10.00 | Sep 22, 2026 |
GPT-6 Sol | 1.2¢$11.88 / 1,000 | $2.00 / $10.00 | Sep 22, 2026 |
GPT-6 Astra | 3.4¢$33.60 / 1,000 | $10.00 / $50.00 | Sep 4, 2026 |
GPT-6 Astra Pro | 3.4¢$33.60 / 1,000 | $10.00 / $50.00 | Sep 4, 2026 |
GPT-5.6 Luna Pro | 0.14¢$1.42 / 1,000 | $0.20 / $1.20 | Jul 9, 2026 |
GPT-5.6 Luna | 0.14¢$1.42 / 1,000 | $0.20 / $1.20 | Jul 9, 2026 |
GPT-5.6 Terra Pro | 1.4¢$14.24 / 1,000 | $2.00 / $12.00 | Jul 9, 2026 |
GPT-5.6 Terra | 1.4¢$14.24 / 1,000 | $2.00 / $12.00 | Jul 9, 2026 |
GPT-5.6 Sol Pro | 2.4¢$23.76 / 1,000 | $4.00 / $20.00 | Jul 9, 2026 |
GPT-5.6 Sol | 2.4¢$23.76 / 1,000 | $4.00 / $20.00 | Jul 9, 2026 |
GPT Chat Latest | 2.0¢$20.12 / 1,000 | $5.00 / $30.00 | May 5, 2026 |
GPT-5.5 Pro | 12¢$121 / 1,000 | $30.00 / $180.00 | Apr 24, 2026 |
GPT-5.5 | 3.6¢$35.59 / 1,000 | $5.00 / $30.00 | Apr 24, 2026 |
GPT-5.4 Nano | 0.15¢$1.48 / 1,000 | $0.20 / $1.25 | Mar 17, 2026 |
GPT-5.4 Mini | 0.53¢$5.34 / 1,000 | $0.75 / $4.50 | Mar 17, 2026 |
GPT-5.4 Pro | 12¢$121 / 1,000 | $30.00 / $180.00 | Mar 5, 2026 |
GPT-5.4 | 1.8¢$17.80 / 1,000 | $2.50 / $15.00 | Mar 5, 2026 |
GPT-5.3-Codex | 1.7¢$16.58 / 1,000 | $1.75 / $14.00 | Feb 24, 2026 |
GPT-5.2-Codex | 0.94¢$9.36 / 1,000 | $1.75 / $14.00 | Jan 14, 2026 |
GPT-5.2 Chat | 0.94¢$9.36 / 1,000 | $1.75 / $14.00 | Dec 10, 2025 |
GPT-5.2 Pro | 11¢$112 / 1,000 | $21.00 / $168.00 | Dec 10, 2025 |
GPT-5.2 | 1.7¢$16.58 / 1,000 | $1.75 / $14.00 | Dec 10, 2025 |
GPT-5.1-Codex-Max | 0.67¢$6.69 / 1,000 | $1.25 / $10.00 | Dec 4, 2025 |
GPT-5.1 | 1.2¢$11.85 / 1,000 | $1.25 / $10.00 | Nov 13, 2025 |
GPT-5.1-Codex | 0.67¢$6.69 / 1,000 | $1.25 / $10.00 | Nov 13, 2025 |
GPT-5.1-Codex-Mini | 0.13¢$1.34 / 1,000 | $0.25 / $2.00 | Nov 13, 2025 |
gpt-oss-safeguard-20b | 0.02¢$0.20 / 1,000 | $0.075 / $0.30 | Oct 29, 2025 |
GPT-5 Pro | 8.0¢$80.23 / 1,000 | $15.00 / $120.00 | Oct 6, 2025 |
GPT-5 | 0.67¢$6.69 / 1,000 | $1.25 / $10.00 | Aug 7, 2025 |
GPT-5 Mini | 0.13¢$1.34 / 1,000 | $0.25 / $2.00 | Aug 7, 2025 |
GPT-5 Nano | 0.03¢$0.27 / 1,000 | $0.05 / $0.40 | Aug 7, 2025 |
gpt-oss-120b | 0.04¢$0.40 / 1,000 | $0.15 / $0.60 | Aug 5, 2025 |
gpt-oss-20b | <0.01¢$0.06 / 1,000 | $0.018 / $0.09 | Aug 5, 2025 |
o3 Pro | 5.4¢$53.94 / 1,000 | $20.00 / $80.00 | Jun 11, 2025 |
o4 Mini High | 0.30¢$2.97 / 1,000 | $1.10 / $4.40 | Apr 16, 2025 |
o3 | 0.54¢$5.39 / 1,000 | $2.00 / $8.00 | Apr 16, 2025 |
o4 Mini | 0.30¢$2.97 / 1,000 | $1.10 / $4.40 | Apr 16, 2025 |
GPT-4.1 | 0.54¢$5.39 / 1,000 | $2.00 / $8.00 | Apr 14, 2025 |
GPT-4.1 Mini | 0.19¢$1.90 / 1,000 | $0.40 / $1.60 | Apr 14, 2025 |
GPT-4.1 Nano | 0.05¢$0.48 / 1,000 | $0.10 / $0.40 | Apr 14, 2025 |
o1-pro | 40¢$405 / 1,000 | $150.00 / $600.00 | Mar 19, 2025 |
o3 Mini High | 0.30¢$2.97 / 1,000 | $1.10 / $4.40 | Feb 12, 2025 |
o3 Mini | 0.30¢$2.97 / 1,000 | $1.10 / $4.40 | Jan 31, 2025 |
o1 | 4.0¢$40.45 / 1,000 | $15.00 / $60.00 | Dec 17, 2024 |
GPT-4o (2024-11-20) | 0.67¢$6.74 / 1,000 | $2.50 / $10.00 | Nov 20, 2024 |
GPT-4o (2024-08-06) | 0.67¢$6.74 / 1,000 | $2.50 / $10.00 | Aug 6, 2024 |
GPT-4o-mini | 0.07¢$0.71 / 1,000 | $0.15 / $0.60 | Jul 18, 2024 |
GPT-4o-mini (2024-07-18) | 0.07¢$0.71 / 1,000 | $0.15 / $0.60 | Jul 18, 2024 |
GPT-4o | 0.67¢$6.74 / 1,000 | $2.50 / $10.00 | May 13, 2024 |
GPT-4o (2024-05-13) | 1.0¢$10.17 / 1,000 | $5.00 / $15.00 | May 13, 2024 |
GPT-4 Turbo | 2.0¢$20.34 / 1,000 | $10.00 / $30.00 | Apr 9, 2024 |
GPT-3.5 Turbo (older v0613) | 0.24¢$2.40 / 1,000 | $1.00 / $2.00 | Jan 25, 2024 |
GPT-3.5 Turbo Instruct | 0.24¢$2.43 / 1,000 | $1.50 / $2.00 | Sep 28, 2023 |
GPT-3.5 Turbo 16k | 0.28¢$2.79 / 1,000 | $3.00 / $4.00 | Aug 28, 2023 |
GPT-3.5 Turbo | 0.18¢$1.79 / 1,000 | $0.50 / $1.50 | May 28, 2023 |
GPT-4 | 4.1¢$41.13 / 1,000 | $30.00 / $60.00 | May 28, 2023 |
Price change log
Changes of at least 5% in the OpenRouter list price, detected between weekly snapshots (Internet Archive copies of the public model list before October 2026, our daily pulls after). For open-weight models a change can mean a different cheapest host.
| Model | Change | Input | Output |
|---|---|---|---|
| GPT-5.6 Sol ProOct 5, 2026 → Oct 16, 2026 | +100% | $2.00 → $4.00 | $10.00 → $20.00 |
| GPT-5.6 Sol Pro (batch)Aug 24, 2026 → Oct 16, 2026 | +100% | $1.00 → $2.00 | $5.00 → $10.00 |
| GPT-5.6 SolAug 24, 2026 → Oct 16, 2026 | +100% | $2.00 → $4.00 | $10.00 → $20.00 |
| GPT-5.6 Sol (batch)Aug 24, 2026 → Oct 16, 2026 | +100% | $1.00 → $2.00 | $5.00 → $10.00 |
| gpt-oss-120bOct 5, 2026 → Oct 16, 2026 | +253% | $0.037 → $0.15 | $0.17 → $0.60 |
| GPT-5.6 Sol ProSep 29, 2026 → Oct 5, 2026 | -50% | $4.00 → $2.00 | $20.00 → $10.00 |
| gpt-oss-120bSep 21, 2026 → Oct 5, 2026 | -72% | $0.15 → $0.037 | $0.60 → $0.17 |
| GPT-5.6 Sol ProAug 24, 2026 → Sep 29, 2026 | +100% | $2.00 → $4.00 | $10.00 → $20.00 |
| gpt-oss-120b (batch)Sep 2, 2026 → Sep 29, 2026 | -77% | $0.15 → $0.03 | $0.60 → $0.14 |
| gpt-oss-20bAug 3, 2026 → Sep 29, 2026 | -31% | $0.03 → $0.018 | $0.13 → $0.09 |
| gpt-oss-20b (batch)Sep 2, 2026 → Sep 29, 2026 | -44% | $0.05 → $0.024 | $0.20 → $0.11 |
| gpt-oss-120bAug 24, 2026 → Sep 21, 2026 | +253% | $0.037 → $0.15 | $0.17 → $0.60 |
| GPT-5.6 Sol ProAug 21, 2026 → Aug 24, 2026 | -33% | $2.50 → $2.00 | $15.00 → $10.00 |
| GPT-5.6 Sol Pro (batch)Aug 21, 2026 → Aug 24, 2026 | -33% | $1.25 → $1.00 | $7.50 → $5.00 |
| GPT-5.6 SolAug 21, 2026 → Aug 24, 2026 | -33% | $2.50 → $2.00 | $15.00 → $10.00 |
| GPT-5.6 Sol (batch)Aug 21, 2026 → Aug 24, 2026 | -33% | $1.25 → $1.00 | $7.50 → $5.00 |
| gpt-oss-120bAug 14, 2026 → Aug 24, 2026 | +23% | $0.03 → $0.037 | $0.17 → $0.17 |
| GPT-5.6 Luna ProAug 3, 2026 → Aug 21, 2026 | +100% | $0.10 → $0.20 | $0.60 → $1.20 |
| GPT-5.6 LunaAug 3, 2026 → Aug 21, 2026 | +100% | $0.10 → $0.20 | $0.60 → $1.20 |
| GPT-5.6 Terra ProAug 3, 2026 → Aug 21, 2026 | +100% | $1.00 → $2.00 | $6.00 → $12.00 |
| GPT-5.6 TerraAug 3, 2026 → Aug 21, 2026 | +100% | $1.00 → $2.00 | $6.00 → $12.00 |
| GPT-5.6 Sol ProJul 17, 2026 → Aug 21, 2026 | -50% | $5.00 → $2.50 | $30.00 → $15.00 |
| GPT-5.6 Sol Pro (batch)Aug 14, 2026 → Aug 21, 2026 | -50% | $2.50 → $1.25 | $15.00 → $7.50 |
| GPT-5.6 SolJul 17, 2026 → Aug 21, 2026 | -50% | $5.00 → $2.50 | $30.00 → $15.00 |
| GPT-5.6 Sol (batch)Aug 14, 2026 → Aug 21, 2026 | -50% | $2.50 → $1.25 | $15.00 → $7.50 |
| gpt-oss-120bJul 17, 2026 → Aug 14, 2026 | -19% | $0.037 → $0.03 | $0.17 → $0.17 |
| GPT-5.6 Luna ProJul 28, 2026 → Aug 3, 2026 | -80% | $0.50 → $0.10 | $3.00 → $0.60 |
| GPT-5.6 LunaJul 28, 2026 → Aug 3, 2026 | -80% | $0.50 → $0.10 | $3.00 → $0.60 |
| GPT-5.6 Terra ProJul 28, 2026 → Aug 3, 2026 | -20% | $1.25 → $1.00 | $7.50 → $6.00 |
| GPT-5.6 TerraJul 28, 2026 → Aug 3, 2026 | -20% | $1.25 → $1.00 | $7.50 → $6.00 |
| gpt-oss-20bJul 28, 2026 → Aug 3, 2026 | -7% | $0.03 → $0.03 | $0.14 → $0.13 |
| GPT-5.6 Luna ProJul 17, 2026 → Jul 28, 2026 | -50% | $1.00 → $0.50 | $6.00 → $3.00 |
| GPT-5.6 LunaJul 17, 2026 → Jul 28, 2026 | -50% | $1.00 → $0.50 | $6.00 → $3.00 |
| GPT-5.6 Terra ProJul 17, 2026 → Jul 28, 2026 | -50% | $2.50 → $1.25 | $15.00 → $7.50 |
| GPT-5.6 TerraJul 17, 2026 → Jul 28, 2026 | -50% | $2.50 → $1.25 | $15.00 → $7.50 |