Benchmark suiteLatest source data: Jul 10, 2026Checked: July 16, 2026

GPT-5.1 Codex Mini.

A model-level benchmark profile for GPT-5.1 Codex Mini, combining Arena category ranks, suite indexes, commercial price and speed data, SWE-bench status, and lab context.

Lab

OpenAI

Proprietary

Coverage

44%

4 of 9 tracked signals

Best Arena rank

#85

WebDev Arena

Best suite

#62

Value / 53

Model profile

Benchmark signal map.

This view treats missing values as coverage gaps, then puts every available score, rank, cost, and speed signal into the same visual hierarchy.

Analyst view

GPT-5.1 Codex Mini is strongest on value.

44% coverage

Its best composite result is rank #62 in the value view, with a 53 value index. The strongest raw Arena signal is WebDev Arena at rank #85 with 1,445 public votes.

Best current lane

Value

#62 / 53 value index

Strongest raw signal

Code

#85, 1240 score

Commercial posture

$0.688

5.78s first token / 205 tok/s

Coverage gaps

Text ArenaVision ArenaSearch ArenaDocument ArenaSWE-bench

Profile completeness

4 of 9 signals matched

44%

Arena categories

1/5

Code

Commercial match

Live

GPT-5.1 Codex mini (high)

SWE-bench

Not listed

No confident software benchmark row

Raw identifier

gpt-5.1-codex-mini

Performance cockpit

Public benchmark scores

Arena rows show score, public rank, confidence interval, vote count, and publish date. Missing rows stay visible as coverage gaps.

Text Arena

Arena category

Not listed

No confident public Arena row for this category.

Coverage gap

WebDev Arena

Arena category

1,240#85

1223-1258 CI

1,445 votes

Jul 10, 2026

Arena public leaderboard dataset

Vision Arena

Arena category

Not listed

No confident public Arena row for this category.

Coverage gap

Search Arena

Arena category

Not listed

No confident public Arena row for this category.

Coverage gap

Document Arena

Arena category

Not listed

No confident public Arena row for this category.

Coverage gap

SWE-bench Verified

Software issue resolution

Not listed

No confident SWE-bench row matched to this model.

Coverage gap

Cost and speed

Commercial profile

Price, latency, and throughput are only shown when a confident commercial source row is matched.

Blended price

$0.688

USD / 1M tokens

Input price

$0.250

USD / 1M input tokens

Output price

$2.00

USD / 1M output tokens

Latency

5.78s

Median time to first token

Output speed

205 tok/s

Median generation speed

Matched source row

GPT-5.1 Codex mini (high)

Suite position

Composite ranks by benchmark lens.

These views combine available public signals into purpose-specific indexes. A missing card means the model lacks enough source coverage for that lens.

Lab context

Nearby OpenAI profiles.

Same-lab models make it easier to see whether this profile is a flagship, value play, specialist, or lower-coverage row.

Full lab