OpenAI: GPT-5.1-Codex-Mini

openai/gpt-5-1-codex-mini

GPT-5.1-Codex-Mini is a smaller and faster version of GPT-5.1-Codex

Modalities
In / out per 1M$0.25 / $2.00
Context391K
ReleasedNov 13, 2025

Providers

1 provider serves this model upstream.

Providers serving this model
ProviderInput /MOutput /MCache read /MLatency P50Throughput P50Uptime
Azure$0.25$2.00$0.0314.77s51 tps100%

Market-wide measurements, refreshed every 15 minutes. They describe who serves GPT-5.1-Codex-Mini in general, not how ProjectCOZY routes your requests.

Pricing

List rates per 1M tokens — what GPT-5.1-Codex-Mini costs pay-as-you-go elsewhere, not what you pay here.

Input
$0.25
per 1M tokens
Output
$2.00
per 1M tokens
Cache read
$0.03
per 1M cached tokens
Included in every pass
GPT-5.1-Codex-Mini is included in every ProjectCOZY pass at no extra cost — one flat rate, no per-token metering. The rates above are there for comparison.

Performance

Time to first token and output speed across every provider, over the last 3 days.

0.0s50.0s100.0s150.0s200.0s
Oct 11, 12 AMOct 11, 10 AMOct 11, 6 PMOct 12, 3 AMOct 12, 11 AMOct 12, 7 PMOct 13, 3 AMOct 13, 11 AMOct 13, 7 PMOct 14, 9 AM
Median 90th percentile 99th percentile
0 tok/s100 tok/s200 tok/s300 tok/s400 tok/s
Oct 11, 12 AMOct 11, 10 AMOct 11, 6 PMOct 12, 3 AMOct 12, 11 AMOct 12, 7 PMOct 13, 3 AMOct 13, 11 AMOct 13, 7 PMOct 14, 9 AM
Median 90th percentile 99th percentile

Uptime

100% of requests were served successfully over the last 3 days, across all providers.

Last 3 daysAvailability 99.62%
Oct 11, 2:00 PMNow
Availability over the last 24 hoursAvailability 99.01%
100% 93% 87% 80%
Oct 13, 2:50 PMNow

Apps

Tools that most often run GPT-5.1-Codex-Mini, by tokens this week.

Activity

5.1B tokens processed market-wide in the last month.

0100.0M200.0M300.0M400.0M
Sep 14Sep 19Sep 24Sep 29Oct 4Oct 9Oct 14
Tokens

FAQ

Which model id do I use for GPT-5.1-Codex-Mini?
openai/gpt-5.1-codex-mini. Send it as the model field from any OpenAI-compatible client, against http://192.168.1.55/v1.
How much context does GPT-5.1-Codex-Mini hold?
400,000 tokens per request, of which up to 128,000 can be the response.
What can it accept and return?
Input: image, text. Output: text.
What does GPT-5.1-Codex-Mini cost on a pass?
Nothing beyond the pass itself. Pay-as-you-go elsewhere it lists at $0.25 per 1M input tokens and $2.00 per 1M output tokens.
Who built GPT-5.1-Codex-Mini?
OpenAI, in the GPT family.

Explore

Other models your pass can call.