MODEL PROOF
GPT-5 Mini
BETTER VALUE OPTION
A stored alternative has an equal-or-higher measured score and an equal-or-lower price.
GPT-5.6 Luna · Δ score 57.8 points · 35% lower measured price · $0.450 / 1M tokens
MiMo-V2.6-Pro is a further stored option with these losses: no file input
- Independent LMArena score
- 1,373.2 ± 4.56 · 26,638 votes
- Context window
- 400K
- Maximum output
- 128K
- Input modalities
- text, image, file
- Output modalities
- text
- Published input price
- $0.250 / 1M tokens
- Published output price
- $2.00 / 1M tokens
- Pricing kind
- fixed
Inspect complete billing conditions and endpoint terms below.
Price from OpenAI: the cheapest offer that is serving, at standard delivery and at the maker’s precision or better, at its standard rate.
Cheaper right now: $0.344/M at OpenAI — delivery tier (flex) It does not pass the like-for-like test, so it never sets a rank.
Every price dimension · USD per million tokens
| Input | $0.250/M |
|---|---|
| Output | $2.00/M |
| Cached input | $0.025/M |
| Cache write | Unknown/M |
| Cache write 1h | Unknown/M |
| Reasoning | Unknown/M |
| Web search | $0.01/call |
| Batch discount | 50% |
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
4 provider offers · rates, limits and conditions
Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test.
| Seller | Input | Output | Precision | Uptime (1d) |
|---|---|---|---|---|
| OpenAIopenai/flex Endpoint terms
| $0.125 | $1.00 | undeclared | 100.00% |
| Azureazure Endpoint terms
| $0.250 | $2.00 | undeclared | 99.87% |
| OpenAIopenai Endpoint terms
| $0.250 | $2.00 | undeclared | 99.98% |
| Azureazure/swedencentral Endpoint terms
| $0.275 | $2.20 | undeclared | 100.00% |
Independent scores
| LMArena Elo | 1373.2high |
|---|
LMArena Elo under CC BY 4.0. Absence of another board is not a score of zero.
Best rankings by task
- ASCII art #52 1134
- SVG #61 1090
- Game development #76 1142
- Data visualisation #82 1137
- UI components #83 1113
- Websites #88 1132
- Code categories #88 1119
- 3D #97 1045
Per-task Elo and rank from Design Arena, via OpenRouter’s model feed. The rank is the feed’s, and it counts models OpenRouter does not list.
Capability
| Context window | 400K |
|---|---|
| Max output | 128K |
| Input modes | text, image, file |
| Tool use | yes |
| Reasoning | always on |
| Knowledge cutoff | 2024-05-31 |
| Open weights | no |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-10-06 |
| Quality data | verified |
| Cross-checked | vendor page |
GPT-5 Mini is a compact version of GPT-5, designed to handle lighter-weight reasoning tasks. It provides the same instruction-following and safety-tuning benefits as GPT-5, but with reduced latency and cost....
Questions this page answers
What does GPT-5 Mini cost?
$0.250/M in, $2.00/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does GPT-5 Mini have an independent quality score?
GPT-5 Mini has an LMArena score in this catalogue.
What beats GPT-5 Mini?
GPT-5.6 Luna has an equal-or-higher measured score and an equal-or-lower price.
Does this page use Artificial Analysis scores for GPT-5 Mini?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.
MODEL MONUMENT
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The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not.
[](https://undominated.ai/models/openai__gpt-5-mini/)<a href="https://undominated.ai/models/openai__gpt-5-mini/"><img src="https://undominated.ai/badge/openai__gpt-5-mini.svg" alt="GPT-5 Mini — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/openai__gpt-5-mini.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
older than the last deploy.
