Gemini 4 Carbon vs GPT-6 Astra
Change modelsGemini 4 CarbonGoogle
GPT-6 AstraOpenAI
IndexAll categories, out of 100.
82.7 ±5.1 best
78.0 ±1.9
GapIndex points below the top.
Top
−4.7 · no clear gap
CoverageIndex weight that has results.
80%
100% best
SpeedOutput tokens per second.
31/s
34/s best
EloLMArena rating and rank.
1538 best
1440
ReleasedMonth of release.
2026-10
2026-09
Input / 1MUS dollars per 1M input tokens.
$2.00 best
$10.00
Output / 1MUS dollars per 1M output tokens.
$10.00 best
$50.00
Batch output / 1MBatch price per 1M output tokens.
$5.00 best
$25.00
1K chats2K tokens in, 500 out, each.
$9.00 best
$45.00
1K documents20K tokens in, 1K out, each.
$50.00 best
$250.00
1K agent tasks200K tokens in, 20K out, each.
$600.00 best
$3,000.00
ContextMaximum tokens in one request.
1.05M
1.05M
AgenticMulti-step tasks with tools.
83.2 best
74.6
CodingCode writing and repair.
80.5 best
76.9
ReasoningLogic problems and puzzles.
83.9 best
83.8
MultimodalTasks with images and text.
—
71.2
KnowledgeFacts and expert knowledge.
79.5 best
78.5
MultilingualTasks in many languages.
—
73.6
InstructionTasks with strict prompt rules.
—
79.5
MathMath problems.
77.2
78.0 best
Benchmarks
35 sharedOnly Gemini 4 Carbon: 4Only GPT-6 Astra: 103
Gemini 4 Carbon
GPT-6 Astra