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© 2026 CompareLLM. Public benchmark data aggregated from Arena Elo, LiveBench, SWE-bench & OpenRouter.

Every score has a dated snapshot.

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  3. Claude Opus 4.6 vs Upstage: Solar Pro 4

Pairwise benchmark snapshot · Aug 17, 2026noindex (thin pair)

Claude Opus 4.6 vs Upstage: Solar Pro 4 benchmark

In this head-to-head showdown, Upstage: Solar Pro 4 is more budget-friendly at $0.12/1M per 1M output tokens. Review the complete breakdown below to determine which model best fits your performance and budget requirements.

Executive Comparison Verdict

Bottom Line: Choose Claude Opus 4.6 if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Upstage: Solar Pro 4 if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Executive Verdict Summary

Upstage: Solar Pro 4 holds empirical advantage (2 of 3 metrics)

Coding / SWESWE-bench
Claude Opus 4.6Top code solve rate
ReasoningGPQA / Live
Claude Opus 4.6Top logical accuracy
Best Value$/1M Tok
Upstage: Solar Pro 4Lowest API billing cost
Speed / TokTok/Sec
Claude Opus 4.6Fastest stream rate

Verified Advantage Breakdown

3 benchmarks evaluated across capability, speed, and cost

Claude Opus 4.6 (1)Upstage: Solar Pro 4 (2)
Claude Opus 4.6
1 of 3 Wins
✓Context window
Upstage: Solar Pro 4
2 of 3 Wins
✓Input price✓Output price
Anthropic
Leads 1 of 3
Claude Opus 4.6

Follow-on Opus release. Slightly behind 4.5 on official SWE-bench bash-only in the last published sweep; stronger multi-step autonomous agent reasoning.

Opus 4.6Elo 1,574In: $5 · Out: $25/1M
upstage
Leads 2 of 3
Upstage: Solar Pro 4

Auto-discovered from OpenRouter (upstage/solar-pro4). Preview until a second source matches.

In: $0.03 · Out: $0.12/1M

Claude 4 Series Lineage & Sibling Variants

5 models

Currently comparing Claude Opus 4.6 vs Upstage: Solar Pro 4. Alternative family tiers available.

Active: Claude Opus 4.6
Claude Opus 4.5$25Claude Sonnet 4.5$15Claude Opus 4.8$25Claude Haiku 4.5$5

Claude Opus 4.6 Thinking Depth & Cost Scaler

Model A

Simulate accuracy gains vs added response time & token cost

Mode: Medium (16k budget)

Reasoning models “think before answering” by generating internal reasoning tokens. Higher effort improves math, coding, and logic accuracy, but increases response delay and token costs.

Delay
360 ms
Standard
CoT Tokens
~3,200
Internal reasoning
Cost / 1k
$90.00
9.0× base bill
Accuracy Boost
+5.2%
STEM & Logic
Top Rival Showdowns for Claude Opus 4.6
All Matchups
Compare vs:vs GPT-5vs Gemini 3 Provs Grok 4.6vs DeepSeek V4 Provs Qwen 3 Max
Preference Leader

No shared data

Single model data

Throughput Leader

No shared data

No latency data

Value per Dollar LeaderUpstage: Solar Pro 4 Wins

Upstage: Solar Pro 4

$0.12 / 1M output

Capability Percentiles

Relative percentile scores computed across all active models in the benchmark catalog.

Multi-Dimensional Capability Radar

Leaders Matchup Capability Radar

Comparing top standard models across 6 key capability dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile

Overall Matchup Breakdown

Category wins across reasoning intelligence, generation speed, and token cost.

Claude Opus 4.6 (8)vsUpstage: Solar Pro 4 (2)
Claude Opus 4.6: 8W (80%)Overall: Claude Opus 4.6Upstage: Solar Pro 4: 2W (20%)
← Claude Opus 4.6Upstage: Solar Pro 4 →
🏆Claude Opus 4.6 Leads(5/5)

Intelligence & Reasoning

Preference Elo, Coding proficiency, SWE-bench & LiveBench accuracy

Benchmark
Claude Opus 4.6vsUpstage: Solar Pro 4
Preference Elo
1,574vs—
Coding Elo
1,570vs—
SWE-bench
75.9%vs—
LiveBench
72%vs—
GPQA Diamond
84.8%vs—
Claude Opus 4.6: 5WUpstage: Solar Pro 4: 0W
🏆Claude Opus 4.6 Leads(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Claude Opus 4.6vsUpstage: Solar Pro 4
Output speed
64 tok/svs—
Time to first token
360 msvs—
Claude Opus 4.6: 2WUpstage: Solar Pro 4: 0W
🏆Upstage: Solar Pro 4 Leads(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Claude Opus 4.6vsUpstage: Solar Pro 4
Output price
$25/1Mvs$0.12/1M+$24.88/1M
Input price
$5/1Mvs$0.03/1M+$4.97/1M
Context window
1Mvs524k+476k
Claude Opus 4.6: 1WUpstage: Solar Pro 4: 2W

Side-by-Side Benchmark Matrix

Claude Opus 4.6Upstage: Solar Pro 4
Preference Elo
Claude Opus 4.61,574
Upstage: Solar Pro 4—
Coding Elo
Claude Opus 4.61,570
Upstage: Solar Pro 4—
LiveBench
Claude Opus 4.672%
Upstage: Solar Pro 4—
SWE-bench
Claude Opus 4.675.9%
Upstage: Solar Pro 4—
GPQA Diamond
Claude Opus 4.684.8%
Upstage: Solar Pro 4—
Time to first token
Claude Opus 4.6360 ms
Upstage: Solar Pro 4—
Output speed
Claude Opus 4.664 tok/s
Upstage: Solar Pro 4—
Input priceUpstage: Solar Pro 4 +$4.97/1M
Claude Opus 4.6$5/1M
Upstage: Solar Pro 4$0.03/1M
Output priceUpstage: Solar Pro 4 +$24.88/1M
Claude Opus 4.6$25/1M
Upstage: Solar Pro 4$0.12/1M
Context windowClaude Opus 4.6 +476k
Claude Opus 4.61M
Upstage: Solar Pro 4524k
BenchmarkClaude Opus 4.6Upstage: Solar Pro 4Advantage Delta
Preference Elo
1,574
lmarena · Aug 17, 2026
——
Coding Elo
1,570
lmarena · Aug 17, 2026
——
LiveBench
72%
livebench · Aug 17, 2026
——
SWE-bench
75.9%
swebench · Aug 17, 2026
——
GPQA Diamond
84.8%
seed-bootstrap · Aug 1, 2026
——
Time to first token
360 ms
seed-bootstrap · Aug 1, 2026
——
Output speed
64 tok/s
seed-bootstrap · Aug 1, 2026
——
Input price
$5/1M
openrouter · Aug 17, 2026
$0.03/1M
openrouter · Aug 17, 2026
+$4.97/1M
Output price
$25/1M
openrouter · Aug 17, 2026
$0.12/1M
openrouter · Aug 17, 2026
+$24.88/1M
Context window
1M
openrouter · Aug 17, 2026
524k
openrouter · Aug 17, 2026
+476k

Workload Cost & Savings Calculator

Simulate monthly production API costs in USD (US Dollar).

Save 99% with Upstage: Solar Pro 4
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Claude Opus 4.6$550.00 / mo
In: $175Out: $375
Upstage: Solar Pro 4$2.85 / mo
In: $1.05Out: $1.8
Estimated Cost Delta

Upstage: Solar Pro 4 is estimated to save $547.15/month ($6,566/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Upstage: Solar Pro 4:Pick Upstage: Solar Pro 4 when you are optimizing output cost.
  • 2
    Claude Opus 4.6:Pick Claude Opus 4.6 for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatUpstage: Solar Pro 4

Lower output list price ($0.12/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGClaude Opus 4.6

Larger window (1M).

Screenshots / visionClaude Opus 4.6

Claude Opus 4.6 is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatUpstage: Solar Pro 4Lower output list price ($0.12/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGClaude Opus 4.6Larger window (1M).
Screenshots / visionClaude Opus 4.6Claude Opus 4.6 is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news
launchMay 10, 2026

Claude Opus 4.6: the May follow-on that still shows up in old bookmarks

Slightly behind 4.5 on one official SWE-bench sweep; stronger long-horizon traces. We keep the row for old vs URLs.

Cast Your Matchup Vote

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Anthropic

Claude Opus 4.6

Elo 1,574
SWE-bench75.9%
Speed (tok/s)64 tok/s
Input / 1M Tokens$5/1M
Output / 1M Tokens$25/1M
upstage

Upstage: Solar Pro 4

Elo n/a
SWE-bench—
Speed (tok/s)524k
Input / 1M Tokens$0.03/1M
Output / 1M Tokens$0.12/1M

Frequently Asked Questions

Which is better overall, Claude Opus 4.6 or Upstage: Solar Pro 4?
We do not have preference Elo for both models, so we do not declare an overall winner. Compare the metrics that exist.
Which is better at coding, Claude Opus 4.6 or Upstage: Solar Pro 4?
SWE-bench is missing for at least one model, so we do not rank coding from a single number.
Which is cheaper to run in production?
Upstage: Solar Pro 4 output tokens are $0.12/1M versus $25/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude Opus 4.6 or Upstage: Solar Pro 4?
We do not have TTFT for both models.
Which has the larger context window?
Claude Opus 4.6 accepts 1M tokens versus 524k.
Can I self-host either model?
Neither model is marked open-weights here. You are comparing hosted APIs.
Are these scores from CompareLLM’s own evals?
No. V1 aggregates public leaderboards (and optional first-party latency pings). Each cell names its source and date. Read /methodology.
What does preference Elo mean on this page?
Preference Elo is a crowd vote from LMArena / Arena. People see two hidden answers and pick the one they like more. The model that wins more often gets a higher Elo. That means people preferred it — not that it passed a school test. It is not SWE-bench, not accuracy, and not a number we invent. Claude Opus 4.6 and Upstage: Solar Pro 4 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · May 10, 2026

    Claude Opus 4.6: the May follow-on that still shows up in old bookmarks

Similar Head-to-Head Comparisons

All Claude Opus 4.6 matchups →|All Upstage: Solar Pro 4 matchups →
Claude Opus 4.6 vs Claude Opus 4.5 (previous opus)Claude Opus 4.6 vs Claude Opus 4.8 (next opus)Claude Sonnet 5 vs Claude Opus 4.6Claude Fable 5 vs Claude Opus 4.6Claude Sonnet 4.5 vs Claude Opus 4.6Claude Opus 5 vs Claude Opus 4.6