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GPT-5.5 (xhigh)
GPT-5.5 (high)
Claude Opus 4.7 (Adaptive Reasoning, Max Effort)
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GPT-5.4 (xhigh)
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OpenAI

GPT-5 Codex (high)

GPT-5 Codex (high) is an OpenAI GPT-5 family model, positioned around stronger reasoning, coding, factuality, and agentic work than earlier GPT generations. This profile keeps the release context separate from the local Artificial Analysis measurements so you can compare the specific reasoning tier on benchmark quality, speed, and cost.

Introducing GPT-5

Operational Metrics

Output Speed166.8 tok/s
First Token6.71s
Blended Price$3.44/M

Model Metadata

Queryable facts extracted from the upstream model payload.

ReleaseSep 23, 2025
Context Windown/a
Modalitiesn/a
API fields: release_date

Strength: Math

Rank #2 across 269 models.

98.7

Strength: MMLU-Pro

Rank #16 across 345 models.

86.5%

Strength: LCB

Rank #17 across 343 models.

84.0%

Watch Area: TTFT

Rank #246 across 293 models.

6.71s

Watch Area: Output $

Rank #267 across 325 models.

$10.00/M

Watch Area: Blended $

Rank #257 across 325 models.

$3.44/M

Strength Profile

Percentile score by analysis domain.

* Cost is inverted: lower input, output, and blended prices rank higher.

Benchmark Percentiles

Higher bars mean stronger relative placement.

All Benchmarks

MetricDomainValueRank
Artificial Analysis Intelligence Indexoverall44.6#44
Artificial Analysis Coding Indexcoding38.9#51
Artificial Analysis Math Indexmath98.7#2
MMLU-Proreasoning86.5%#16
GPQA
reasoning
83.7%
#69
Humanity's Last Examreasoning25.6%#44
LiveCodeBenchcoding84.0%#17
SciCodecoding, reasoning40.9%#81
Output Speedspeed166.8 tok/s#40
Time to First Tokenspeed6.71s#246
Blended Pricecost$3.44/M#257
Input Pricecost$1.25/M#238
Output Pricecost$10.00/M#267
Value Indexcost, overall13.0#222