GPT-5 Image Mini
OpenAI · released Oct 16, 2025
- Type
- Closed
- Input
- $2.50
- Output
- $2.00
- Cached
- $0.25
List price · per 1M tokens · OpenAI at 400K context · source ↗
Our take
Written Sep 6, 2026GPT-5 Image Mini is a proprietary multimodal model from OpenAI that handles text, images and files with a 400,000-token request limit. It is built for long-document and image reasoning tasks where predictable pricing matters more than measured quality scores.
Pick this for long-context image and document workflows needing 400,000 tokens of working memory, or where flat pricing across providers removes arbitrage overhead. Use it when OpenAI-hosted throughput of 117 tokens per second meets your latency needs. Skip it if you need verified benchmark scores, if you want to self-host, or if you need throughput guarantees from both providers.
The case for it
- Exceptionally large request limit for multimodal work: 400,000 tokens, among the largest we track for any image-capable model.
- Flat, predictable pricing across both providers with identical input and output rates.
The case against it
- No measured quality scores in our data: chat, reasoning, coding and vision benchmarks are all unverified.
- Throughput is only disclosed for one of two providers.
- Proprietary weights: you cannot download or self-host.
How good is it?
We hold no score for this model.
So there is no figure here for everyday use, coding, agent work or writing. That is a gap in our data, not a low score.
Where to rent it
Prices checked 4 hours ago — each listing carries its own date.
OpenAI, through OpenRouter
The lab is also the cheapest we hold. The strip above and this offer are the same one, so nothing on this page undercuts OpenAI on 400K of context.
- per 1M tokens
- $2.50 in / $2.00 out
- Context served
- 400K
- Throughput
- ~0 tok/s
| Provider | In / out per 1M tokens | Context | Throughput | Trains on prompts | Logs prompts | Zero retention |
|---|---|---|---|---|---|---|
| OpenRouterOpenRouter's own listing | $2.50 / $2.00checked 4 hours ago | 400K | not measured | Unknown | Unknown | Unknown |
| OpenAIThrough OpenRouter | $2.50 / $2.00checked 4 hours ago | 400K128K max reply | 0 tok/s | No | Yesunknown period | Unknown |
OpenRouterAcross the 2 listings we hold: 1 says it does not train on prompts, 0 say they do and 1 does not say. 0 appear in the zero-retention registry we check; the rest are unknown to us.
What each host's API supports
From the parameter list each endpoint publishes. Streaming is omitted: nothing we hold reports it, for any model.
| Provider | Tool calling | JSON output | Strict schema |
|---|---|---|---|
| OpenRouterOpenRouter's own listing | ✗ | ✓ | ✓ |
| OpenAIThrough OpenRouter | ✗ | ✓ | ✓ |
Tool calling: 0 of 2 listings say yes, 2 say no. JSON output: 2 of 2 listings say yes. Strict schema: 2 of 2 listings say yes.
When we formed this view
Recent changes
What moved
first indexed by our pipelineEach date is the day we first saw the change, or the day the maker announced it.
What we do not know about this model yet
- No independent board has scored it, so we hold no quality figures at all.
- Nothing we hold says whether an endpoint streams, so we do not show it either way.
- 1 of 2 listings does not say whether it trains on prompts.
- We hold no batch or off-peak rate for any of its listings.
Licence and identifiers
What the licence allowsWe hold no licence record for this model. Inside are the identifiers you need to pull it — its Hugging Face repo where we have one, our slug and a machine-readable card.
Licence
We hold no licence record for this model, and no record of published weights either — so we can neither summarise its terms nor point you at the weights.
Identifiers
- Takes in, gives back
- Text, images and documents in, text and images out
- Catalogue slug
- openai-gpt-5-image-mini