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Compare / head-to-head

Qwen3.5 122B-A10BvsSolar Open 2 250B-A15B

Qwen3.5 122B-A10B and Solar Open 2 250B-A15B do not yet share a public benchmark, so quality cannot be compared apples-to-apples. Solar Open 2 250B-A15B has the larger context window (1M tokens).

Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.

Shared benchmarks
0
no overlap yet
Cheaper per token
list price, input + output
Larger context
Solar Open 2 250B-A15B
1M tokens
Provider uptime (30d)
— · —
Qwen · Upstage
textvision
Context
262K
Max out
Input /1M
$0.115
Output /1M
$0.917
Cached /1M
Scores
1 · 1 core
Solar Open 2 250B-A15B
Upstage · released 2026-07-24
text
Context
1M
Max out
Input /1M
Output /1M
Cached /1M
Scores
16 · 5 core
Quality

Benchmark matrix

BenchmarkQwen3.5 122B-A10BSolar Open 2 250B-A15BΔEdge
Reported by both · 0
No public benchmark is reported for both models yet.
Only Qwen3.5 122B-A10B reports · 1
LMArena Elo1417.9 not reported
Only Solar Open 2 250B-A15B reports · 16
SWE-bench Verifiednot reported70.4%
GPQA Diamondnot reported86.3%
MMLU-Pronot reported86.2%
AIME 2026not reported95.7%
Humanity's Last Exam (no tools)not reported28.8%
AA-LCRnot reported62.3%
APEX-Agentsnot reported16.6%
ArtifactsBenchnot reported55.9%
GDPval-AA v2not reported1128
HMMT 2026-02not reported93.9%
IFBenchnot reported80%
LiveCodeBench v6not reported92.4%
MCP Atlasnot reported58.2%
Multi-Challengenot reported61%
Tau3-Bench (banking)not reported19.6%
Terminal Bench Hardnot reported28.3%
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is Qwen3.5 122B-A10B minus Solar Open 2 250B-A15B in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing

Side by side

SpecQwen3.5 122B-A10BSolar Open 2 250B-A15BEdge
Context window262K tokens1M tokensSolar Open 2 250B-A15B
Max output
Input price / 1M$0.115
Output price / 1M$0.917
Cached input / 1M
Input + output / 1M
Lower is cheaper. List prices; batch, tool and regional fees excluded.
$1.03
Modalitiestext · visiontextQwen3.5 122B-A10B
Released2026-07-24
Cited benchmark scores116
Reliability

Provider status

All providers
More matchups

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More matchups

Solar Open 2 250B-A15B vs …

Built by Respan
Which one wins on your data?

Public benchmarks are a starting point. Run Qwen3.5 122B-A10B and Solar Open 2 250B-A15B on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.