GPT-5 nano vs GPT-5
Change modelsGPT-5 nanoOpenAI
GPT-5OpenAI
IndexAll categories, out of 100.
41.9 ±6.2
55.0 ±4.2 best
GapIndex points below the top.
−13.1
Top
CoverageIndex weight that has results.
75%
90% best
SpeedOutput tokens per second.
81/s best
76/s
EloLMArena rating and rank.
1320
1406 best
ReleasedMonth of release.
2025-08
2025-08
Input / 1MUS dollars per 1M input tokens.
$0.05 best
$1.25
Output / 1MUS dollars per 1M output tokens.
$0.40 best
$10.00
Batch output / 1MBatch price per 1M output tokens.
$0.20 best
$5.00
1K chats2K tokens in, 500 out, each.
$0.30 best
$7.50
1K documents20K tokens in, 1K out, each.
$1.40 best
$35.00
1K agent tasks200K tokens in, 20K out, each.
$18.00 best
$450.00
ContextMaximum tokens in one request.
400K
400K
AgenticMulti-step tasks with tools.
—
53.1
CodingCode writing and repair.
37.2
52.5 best
ReasoningLogic problems and puzzles.
42.6
55.4 best
MultimodalTasks with images and text.
47.5
61.2 best
KnowledgeFacts and expert knowledge.
37.4
58.4 best
MultilingualTasks in many languages.
44.5
—
InstructionTasks with strict prompt rules.
—
—
MathMath problems.
45.8
55.3 best
Benchmarks
32 sharedOnly GPT-5 nano: 8Only GPT-5: 13
GPT-5 nano
GPT-5