Solar Open 2 vs Solar Pro 4
Change modelsSolar Open 2Upstage
Solar Pro 4Upstage
IndexAll categories, out of 100.
53.3 ±6.2 best
52.1 ±6.0
GapIndex points below the top.
Top
−1.2 · no clear gap
CoverageIndex weight that has results.
85% best
80%
SpeedOutput tokens per second.
—
44/s
EloLMArena rating and rank.
—
1388
ReleasedMonth of release.
2026-07
2026-08
Input / 1MUS dollars per 1M input tokens.
—
$0.15
Output / 1MUS dollars per 1M output tokens.
—
$0.60
1K chats2K tokens in, 500 out, each.
—
$0.60
1K documents20K tokens in, 1K out, each.
—
$3.60
1K agent tasks200K tokens in, 20K out, each.
—
$42.00
ContextMaximum tokens in one request.
1M best
524K
AgenticMulti-step tasks with tools.
47.9
49.9 best
CodingCode writing and repair.
56.7
58.0 best
ReasoningLogic problems and puzzles.
50.0
52.5 best
MultimodalTasks with images and text.
—
—
KnowledgeFacts and expert knowledge.
54.2 best
50.1
MultilingualTasks in many languages.
—
—
InstructionTasks with strict prompt rules.
63.8
—
MathMath problems.
56.7 best
53.9
Benchmarks
7 sharedOnly Solar Open 2: 5Only Solar Pro 4: 12
Solar Open 2
Solar Pro 4