o4-mini
o4 Mini — priced by OpenAI.
Published tiers
What the most recent complete run published for this model, one row per priced tier, each with the source it was read from.
| Tier | Input USD/1M | Output USD/1M | Verified | Read from | Reader | Flags |
|---|---|---|---|---|---|---|
| batch | 0.55 | 2.2 | 2 hours ago2026-08-16 18:02Z | OpenAI API pricing (docs)platform.openai.com | openai_astro_props | confirmed |
| cache_hit | 0.275 | — | 2 hours ago2026-08-16 18:02Z | OpenAI API pricing (docs)platform.openai.com | openai_astro_props | confirmed |
| cache_hit:batch | 0.1375 | — | 2 hours ago2026-08-16 18:02Z | OpenRouter models APIopenrouter.ai | openrouter_json | confirmed |
| cache_hit:flex | 0.138 | — | 2 hours ago2026-08-16 18:02Z | OpenAI API pricing (docs)platform.openai.com | openai_astro_props | confirmed |
| cache_hit:priority | 0.5 | — | 2 hours ago2026-08-16 18:02Z | OpenAI API pricing (docs)platform.openai.com | openai_astro_props | confirmed |
| flat | 1.1 | 4.4 | 2 hours ago2026-08-16 18:02Z | OpenAI API pricing (docs)platform.openai.com | openai_astro_props | confirmed |
| flat:flex | 0.55 | 2.2 | 2 hours ago2026-08-16 18:02Z | OpenAI API pricing (docs)platform.openai.com | openai_astro_props | confirmed |
| flat:priority | 2 | 8 | 2 hours ago2026-08-16 18:02Z | OpenAI API pricing (docs)platform.openai.com | openai_astro_props | confirmed |
Price history
Every distinct value this price has taken, oldest first — what the price did, not how often we happened to look. Rows marked backfill came from a public git history of a third-party pricing file and were never verified by us; they extend the series backwards and are flagged rather than hidden.
batch
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-15 23:13Z | 2026-08-16 18:02Z | 0.55 | 2.2 | 16 | OpenAI API pricing (docs) | 2026-08-16 18:02Z |
cache_hit
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2025-04-16 19:40Z | 2026-08-16 18:02Z | 0.275 | — | 17 | OpenAI API pricing (docs) | 2026-08-16 18:02Z |
cache_hit:batch
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-15 23:13Z | 2026-08-16 18:02Z | 0.1375 | — | 16 | OpenRouter models API | 2026-08-16 18:02Z |
cache_hit:flex
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-16 04:15Z | 2026-08-16 18:02Z | 0.138 | — | 11 | OpenAI API pricing (docs) | 2026-08-16 18:02Z |
cache_hit:priority
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-16 04:15Z | 2026-08-16 18:02Z | 0.5 | — | 11 | OpenAI API pricing (docs) | 2026-08-16 18:02Z |
flat
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2025-04-16 19:40Z | 2026-08-16 18:02Z | 1.1 | 4.4 | 17 | OpenAI API pricing (docs) | 2026-08-16 18:02Z |
flat:flex
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-16 04:15Z | 2026-08-16 18:02Z | 0.55 | 2.2 | 11 | OpenAI API pricing (docs) | 2026-08-16 18:02Z |
flat:priority
1 distinct value(s)One value across the whole archive: this price has not moved in anything we have observed.
| First seen | Last seen | Input USD/1M | Output USD/1M | Reads | Source | Last verified by us | Flags |
|---|---|---|---|---|---|---|---|
| 2026-08-16 04:15Z | 2026-08-16 18:02Z | 2 | 8 | 11 | OpenAI API pricing (docs) | 2026-08-16 18:02Z |
Provenance
Read by openai_astro_props, openrouter_json from OpenAI API pricing (docs), OpenRouter models API. Each row above links to the exact page its number came from. The vendor's page is authoritative: if it and this page disagree, the vendor is right and we are wrong.