GPT-5.1-Codex-Max vs GPT-5 (high)
Change modelsGPT-5.1-Codex-MaxOpenAI
GPT-5 (high)OpenAI
IndexAll categories, out of 100.
53.8 ±6.2 best
53.6 ±5.0
GapIndex points below the top.
Top
−0.2 · no clear gap
CoverageIndex weight that has results.
85%
95% best
SpeedOutput tokens per second.
55/s
76/s best
EloLMArena rating and rank.
—
1406
ReleasedMonth of release.
2025-11
2025-08
Input / 1MUS dollars per 1M input tokens.
$1.25
$1.25
Output / 1MUS dollars per 1M output tokens.
$10.00
$10.00
1K chats2K tokens in, 500 out, each.
$7.50
$7.50
1K documents20K tokens in, 1K out, each.
$35.00
$35.00
1K agent tasks200K tokens in, 20K out, each.
$450.00
$450.00
ContextMaximum tokens in one request.
400K
400K
AgenticMulti-step tasks with tools.
57.5 best
49.7
CodingCode writing and repair.
53.2
59.5 best
ReasoningLogic problems and puzzles.
51.4
54.4 best
MultimodalTasks with images and text.
49.5
51.7 best
KnowledgeFacts and expert knowledge.
55.7
56.1 best
MultilingualTasks in many languages.
—
—
InstructionTasks with strict prompt rules.
54.4
57.3 best
MathMath problems.
—
49.2
Benchmarks
8 sharedOnly GPT-5.1-Codex-Max: 4Only GPT-5 (high): 7
GPT-5.1-Codex-Max
GPT-5 (high)