Overview
GPT 5.1 Codex Mini was released on November 13, 2025. Pricing starts at $0.250 per million input tokens and $2.00 per million output tokens. The model supports a context window of up to 400K tokens. API access is available through OpenAI.
Context Window
400K
tokens
Pricing
Input$0.250
Output$2.00
Cached$0.025
per 1M tokens
Speed
Output180 tok/s
TTFT7.83s
median latency
Capabilities
VisionToolsCaching
Pricing Comparison
Compare GPT 5.1 Codex Mini with 10 similar models by price.
Current Pricing (per 1M tokens)
11 models
Provider | Model | Input $/M | Output $/M | Context | Actions |
|---|---|---|---|---|---|
$0.250 | $2.000 | 400,000 | |||
$0.200 | $0.200 | 32,768 | |||
QW | $0.210 | $0.630 | 7,500 | ||
DS | $0.210 | $0.320 | 163,840 | ||
DS | $0.210 | $0.790 | 163,840 | ||
QW | $0.220 | $0.950 | 262,144 | ||
TN | $0.250 | $0.850 | 163,840 | ||
$0.250 | $1.000 | 128,000 | |||
$0.250 | $1.000 | 128,000 | |||
$0.250 | $2.000 | 262,144 | |||
TN | $0.250 | $0.850 | 163,840 |
* Some models use tiered pricing based on prompt length. Displayed prices are for prompts ≤ 200k tokens.
Compare Providers
GPT 5.1 Codex Mini is available from multiple providers with different pricing and availability.
3
Providers
$0.250
Cheapest Input/M
$2.000
Cheapest Output/M
OpenAI
Best Price
Provider Pricing
3 models
Provider | Input $/M | Output $/M | Uptime |
|---|---|---|---|
 OpenAI Best Price | $0.250 | $2.000 | - |
 OpenRouter Best Price | $0.250 | $2.000 | - |
A Azure Best Price | $0.250 | $2.000 | - |
Provider pricing data sourced from OpenRouter and Helicone
Cost vs. Quality
Compare GPT 5.1 Codex Mini's benchmark performance against all models.
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GPT-5.1-Codex-Mini
Other models
Detailed Benchmark Scores
Intelligence
38.0 (93th pct)
Coding
35.0 (91th pct)
Math
91.7 (92th pct)
MMLU Pro
82.0 (79th pct)
GPQA
81.3 (91th pct)
LiveCodeBench
83.6 (93th pct)
AIME
-
Aider
-
Benchmark data from Artificial Analysis and HuggingFace Open LLM Leaderboard
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