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What a million tokens costs, day by day: the median and cheapest published input/output prices across every provider offer AI Atlas tracks. Prices are quoted as stated on providers' pricing pages; every change is kept.
552 offers · 381 models · 11 Sept 2026
Window
Index
Median input
$0.60
per 1M · 11 Sept 2026
Median output
$2.3
per 1M · 11 Sept 2026
Cheapest input
$0.017
dearest $150
Models priced
381
with a current offer
Offers
552
model × provider rows
The index has 1 day of observations so far — a line needs at least two. The chart fills in as daily snapshots accumulate.
Daily medians of live USD-per-1M-token input/output prices across all provider offers valid at the end of each UTC day.
Movers
Provider offers whose published price moved, newest first.
| Model | Provider | Input / 1M | Output / 1M | Observed | Source |
|---|---|---|---|---|---|
| No price change recorded in this window. The first observation of a price is not a change. | |||||
Current prices
One row per model × provider, as published. Sort by any column; filter by provider or model slug.
| Model | Provider | Input / 1M | Output / 1M | Cached in | Context | Observed | Source |
|---|---|---|---|---|---|---|---|
| gpt-5.5OpenAIopenai/gpt-5.5:batch | OpenAI API↗ | $2.5 | $15 | $0.25 | 1.05M | 59 min ago | openrouter.aiT2 |
| gpt-5.4OpenAIopenai/gpt-5.4 | OpenAI API↗ | $2.5 | $15 | $0.25 | 1.05M | 59 min ago | openrouter.aiT2 |
| gpt-audioOpenAIopenai/gpt-audio | OpenAI API↗ | $2.5 | $10 | — | 128K | 59 min ago | openrouter.aiT2 |
| GPT-5 Image MiniOpenAIopenai/gpt-5-image-mini | OpenAI API↗ | $2.5 | $2 | $0.25 | 400K | 59 min ago | openrouter.aiT2 |
| GPT-4o (2024-11-20)OpenAIopenai/gpt-4o-2024-11-20 | OpenAI API↗ | $2.5 | $10 | $1.25 | 128K | 59 min ago | openrouter.aiT2 |
| GPT-4o (2024-08-06)OpenAIopenai/gpt-4o-2024-08-06 | OpenAI API↗ | $2.5 | $10 | $1.25 | 128K | 59 min ago | openrouter.aiT2 |
| gpt-4oOpenAIopenai/gpt-4o | OpenAI API↗ | $2.5 | $10 | $1.25 | 128K | 59 min ago | openrouter.aiT2 |
| gpt-3.5-turbo-16kOpenAIopenai/gpt-3.5-turbo-16k | OpenAI API↗ | $3 | $4 | — | 16.4K | 59 min ago | openrouter.aiT2 |
| gpt-5.6-solOpenAI | OpenAI API↗ | $4 | $20 | $0.40 | — | 1 h ago | developers.openai.comT1 |
| gpt-realtime-2.1OpenAI | OpenAI API↗ | $4 | $24 | $0.40 | — | 1 h ago | developers.openai.comT1 |
| gpt-realtime-2OpenAI | OpenAI API↗ | $4 | $24 | $0.40 | — | 1 h ago | developers.openai.comT1 |
| gpt-realtime-1.5OpenAI | OpenAI API↗ | $4 | $16 | $0.40 | — | 1 h ago | developers.openai.comT1 |
| gpt-realtimeOpenAI | OpenAI API↗ | $4 | $16 | $0.40 | — | 1 h ago | developers.openai.comT1 |
| gpt-5.5OpenAI | OpenAI API↗ | $5 | $30 | $0.50 | — | 1 h ago | developers.openai.comT1 |
| gpt-4oOpenAIgpt-4o-2024-05-13 | OpenAI API↗ | $5 | $15 | — | — | 1 h ago | developers.openai.comT1 |
| gpt-image-2.5-sunburstOpenAI | OpenAI API↗ | $5 | — | $1.25 | — | 1 h ago | developers.openai.comT1 |
| gpt-image-2.5-flareOpenAI | OpenAI API↗ | $5 | — | $1.25 | — | 1 h ago | developers.openai.comT1 |
| gpt-image-2OpenAI | OpenAI API↗ | $5 | — | $1.25 | — | 1 h ago | developers.openai.comT1 |
| gpt-image-1.5OpenAI | OpenAI API↗ | $5 | $10 | $1.25 | — | 1 h ago | developers.openai.comT1 |
| gpt-image-1OpenAI | OpenAI API↗ | $5 | — | $1.25 | — | 1 h ago | developers.openai.comT1 |
| chatgpt-image-latestOpenAI | OpenAI API↗ | $5 | $10 | $1.25 | — | 1 h ago | developers.openai.comT1 |
| chat-latestOpenAI | OpenAI API↗ | $5 | $30 | $0.50 | — | 1 h ago | developers.openai.comT1 |
| gpt-rosalind-researchOpenAI | OpenAI API↗ | $5 | $25 | $0.50 | — | 1 h ago | developers.openai.comT1 |
| gpt-6-astraOpenAIopenai/gpt-6-astra:batch | OpenAI API↗ | $5 | $25 | $0.50 | 1.05M | 59 min ago | openrouter.aiT2 |
| GPT-6 Astra ProOpenAIopenai/gpt-6-astra-pro:batch | OpenAI API↗ | $5 | $25 | $0.50 | 1.05M | 59 min ago | openrouter.aiT2 |
| GPT Chat LatestOpenAIopenai/gpt-chat-latest | OpenAI API↗ | $5 | $30 | $0.50 | 400K | 59 min ago | openrouter.aiT2 |
| gpt-5.5OpenAIopenai/gpt-5.5 | OpenAI API↗ | $5 | $30 | $0.50 | 1.05M | 59 min ago | openrouter.aiT2 |
| GPT-4o (2024-05-13)OpenAIopenai/gpt-4o-2024-05-13 | OpenAI API↗ | $5 | $15 | — | 128K | 59 min ago | openrouter.aiT2 |
| gpt-4-turboOpenAIopenai/gpt-4-turbo:batch | OpenAI API↗ | $5 | $15 | — | 128K | 59 min ago | openrouter.aiT2 |
| gpt-5-proOpenAIopenai/gpt-5-pro:batch | OpenAI API↗ | $7.5 | $60 | — | 400K | 59 min ago | openrouter.aiT2 |
| GPT-5.4 Image 2OpenAIopenai/gpt-5.4-image-2 | OpenAI API↗ | $8 | $15 | $2 | 272K | 59 min ago | openrouter.aiT2 |
| gpt-6-astraOpenAI | OpenAI API↗ | $10 | $50 | $1 | — | 1 h ago | developers.openai.comT1 |
| gpt-4-turboOpenAIgpt-4-turbo-2024-04-09 | OpenAI API↗ | $10 | $30 | — | — | 1 h ago | developers.openai.comT1 |
| gpt-6-astraOpenAIopenai/gpt-6-astra | OpenAI API↗ | $10 | $50 | $1 | 1.05M | 59 min ago | openrouter.aiT2 |
| GPT-6 Astra ProOpenAIopenai/gpt-6-astra-pro | OpenAI API↗ | $10 | $50 | $1 | 1.05M | 59 min ago | openrouter.aiT2 |
| GPT-5 ImageOpenAIopenai/gpt-5-image | OpenAI API↗ | $10 | $10 | $1.25 | 400K | 59 min ago | openrouter.aiT2 |
| gpt-4-turboOpenAIopenai/gpt-4-turbo | OpenAI API↗ | $10 | $30 | — | 128K | 59 min ago | openrouter.aiT2 |
| GPT-4 Turbo PreviewOpenAIopenai/gpt-4-turbo-preview | OpenAI API↗ | $10 | $30 | — | 128K | 59 min ago | openrouter.aiT2 |
| gpt-5.2-proOpenAIopenai/gpt-5.2-pro:batch | OpenAI API↗ | $10.5 | $84 | — | 400K | 59 min ago | openrouter.aiT2 |
| gpt-5.6-cyberOpenAI | OpenAI API↗ | $12.5 | $75 | $1.25 | — | 1 h ago | developers.openai.comT1 |
| gpt-5.5-cyberOpenAI | OpenAI API↗ | $12.5 | $75 | $1.25 | — | 1 h ago | developers.openai.comT1 |
| gpt-5-proOpenAI | OpenAI API↗ | $15 | $120 | — | — | 1 h ago | developers.openai.comT1 |
| o1OpenAI | OpenAI API↗ | $15 | $60 | $7.5 | — | 1 h ago | developers.openai.comT1 |
| tts-1OpenAI | OpenAI API↗ | $15 | — | — | — | 1 h ago | developers.openai.comT1 |
| gpt-5.5-proOpenAIopenai/gpt-5.5-pro:batch | OpenAI API↗ | $15 | $90 | — | 1.05M | 59 min ago | openrouter.aiT2 |
| gpt-5.4-proOpenAIopenai/gpt-5.4-pro:batch | OpenAI API↗ | $15 | $90 | — | 1.05M | 59 min ago | openrouter.aiT2 |
| gpt-5-proOpenAIopenai/gpt-5-pro | OpenAI API↗ | $15 | $120 | — | 400K | 59 min ago | openrouter.aiT2 |
| o1OpenAIopenai/o1 | OpenAI API↗ | $15 | $60 | $7.5 | 200K | 59 min ago | openrouter.aiT2 |
| o3-proOpenAI | OpenAI API↗ | $20 | $80 | — | — | 1 h ago | developers.openai.comT1 |
| o3-proOpenAIopenai/o3-pro | OpenAI API↗ | $20 | $80 | — | 200K | 59 min ago | openrouter.aiT2 |
| gpt-5.2-proOpenAI | OpenAI API↗ | $21 | $168 | — | — | 1 h ago | developers.openai.comT1 |
| gpt-5.2-proOpenAIopenai/gpt-5.2-pro | OpenAI API↗ | $21 | $168 | — | 400K | 59 min ago | openrouter.aiT2 |
| gpt-5.5-proOpenAI | OpenAI API↗ | $30 | $180 | — | — | 1 h ago | developers.openai.comT1 |
| gpt-5.4-proOpenAI | OpenAI API↗ | $30 | $180 | — | — | 1 h ago | developers.openai.comT1 |
| gpt-4OpenAIgpt-4-0613 | OpenAI API↗ | $30 | $60 | — | — | 1 h ago | developers.openai.comT1 |
| tts-1-hdOpenAI | OpenAI API↗ | $30 | — | — | — | 1 h ago | developers.openai.comT1 |
| gpt-5.5-proOpenAIopenai/gpt-5.5-pro | OpenAI API↗ | $30 | $180 | — | 1.05M | 59 min ago | openrouter.aiT2 |
| gpt-5.4-proOpenAIopenai/gpt-5.4-pro | OpenAI API↗ | $30 | $180 | — | 1.05M | 59 min ago | openrouter.aiT2 |
| gpt-4OpenAIopenai/gpt-4 | OpenAI API↗ | $30 | $60 | — | 8.19K | 59 min ago | openrouter.aiT2 |
| o1-proOpenAI | OpenAI API↗ | $150 | $600 | — | — | 1 h ago | developers.openai.comT1 |
| o1-proOpenAIopenai/o1-pro | OpenAI API↗ | $150 | $600 | — | 200K | 59 min ago | openrouter.aiT2 |
“Cheapest” marks the lowest input price for a model among the rows shown on this page (models served by several providers). USD per 1M tokens as published; providers overview · methodology.