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Every score has a dated snapshot.

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  3. Claude 3 Opus vs OpenAI: GPT-5.6 Sol Pro (batch)

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

Claude 3 Opus vs OpenAI: GPT-5.6 Sol Pro (batch) benchmark

In this head-to-head showdown, OpenAI: GPT-5.6 Sol Pro (batch) is more budget-friendly at $15/1M 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 3 Opus if your priority is peak reasoning, complex code generation, and top preference Elo. Choose OpenAI: GPT-5.6 Sol Pro (batch) if you are optimizing for low latency, high throughput, and cost-efficient API deployment.
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Verified Head-to-Head Advantage Breakdown

3 direct benchmark disciplines evaluated across capability, speed, and cost

Claude 3 Opus (0)OpenAI: GPT-5.6 Sol Pro (batch) (3)
Claude 3 Opus
0 of 3 Wins
Competitive baseline across remaining benchmarks
OpenAI: GPT-5.6 Sol Pro (batch)
3 of 3 Wins
✓Input price✓Output price✓Context window
Anthropic
Claude 3 Opus

Original Claude 3 flagship. Kept so opus 3 vs later Opus and vs GPT-4o still resolve.

Elo 1,248$75/1M out
OpenAI
Leads 3 of 3 metrics
OpenAI: GPT-5.6 Sol Pro (batch)

Auto-discovered from OpenRouter (openai/gpt-5.6-sol-pro:batch). Preview until a second source matches.

$15/1M out
Top Rival Showdowns for Claude 3 Opus
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 LeaderOpenAI: GPT-5.6 Sol Pro (batch) Wins

OpenAI: GPT-5.6 Sol Pro (batch)

$15 / 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 Western standard models with China's leading frontier rival across 6 skill dimensions. Tap any spoke or dot to inspect.

Tap any node to inspect
0–100 %ile
Head-to-Head Comparison

Overall Matchup Breakdown

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

Claude 3 Opus (6)vsOpenAI: GPT-5.6 Sol Pro (batch) (3)
Claude 3 Opus: 6W (67%)Overall: Claude 3 OpusOpenAI: GPT-5.6 Sol Pro (batch): 3W (33%)
← Claude 3 OpusOpenAI: GPT-5.6 Sol Pro (batch) →
🏆Claude 3 Opus(4/5)

Intelligence & Reasoning

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

Benchmark
Claude 3 OpusvsOpenAI: GPT-5.6 Sol Pro (batch)
Preference Elo
1,248vs—
Coding Elo
—vs—
SWE-bench
38.4%vs—
LiveBench
46.2%vs—
GPQA Diamond
50.4%vs—
Claude 3 Opus: 4WOpenAI: GPT-5.6 Sol Pro (batch): 0W
🏆Claude 3 Opus(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
Claude 3 OpusvsOpenAI: GPT-5.6 Sol Pro (batch)
Output speed
48 tok/svs—
Time to first token
420 msvs—
Claude 3 Opus: 2WOpenAI: GPT-5.6 Sol Pro (batch): 0W
🏆OpenAI: GPT-5.6 Sol Pro (batch)(3/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
Claude 3 OpusvsOpenAI: GPT-5.6 Sol Pro (batch)
Output price
$75/1Mvs$15/1M+$60/1M
Input price
$15/1Mvs$2.5/1M+$12.5/1M
Context window
200kvs1.1M+850k
Claude 3 Opus: 0WOpenAI: GPT-5.6 Sol Pro (batch): 3W

Side-by-Side Benchmark Matrix

Preference Elo
Claude 3 Opus1,248
lmarena · Aug 17, 2026
OpenAI: GPT-5.6 Sol Pro (batch)—
LiveBench
Claude 3 Opus46.2%
livebench · Aug 17, 2026
OpenAI: GPT-5.6 Sol Pro (batch)—
SWE-bench
Claude 3 Opus38.4%
swebench · Aug 17, 2026
OpenAI: GPT-5.6 Sol Pro (batch)—
GPQA Diamond
Claude 3 Opus50.4%
seed-bootstrap · Aug 1, 2026
OpenAI: GPT-5.6 Sol Pro (batch)—
Time to first token
Claude 3 Opus420 ms
seed-bootstrap · Aug 1, 2026
OpenAI: GPT-5.6 Sol Pro (batch)—
Output speed
Claude 3 Opus48 tok/s
seed-bootstrap · Aug 1, 2026
OpenAI: GPT-5.6 Sol Pro (batch)—
Input price+$12.5/1M
Claude 3 Opus$15/1M
seed-bootstrap · Aug 1, 2026
OpenAI: GPT-5.6 Sol Pro (batch)$2.5/1M
openrouter · Aug 17, 2026
Output price+$60/1M
Claude 3 Opus$75/1M
seed-bootstrap · Aug 1, 2026
OpenAI: GPT-5.6 Sol Pro (batch)$15/1M
openrouter · Aug 17, 2026
Context window+850k
Claude 3 Opus200k
seed-bootstrap · Aug 1, 2026
OpenAI: GPT-5.6 Sol Pro (batch)1.1M
openrouter · Aug 17, 2026
BenchmarkClaude 3 OpusOpenAI: GPT-5.6 Sol Pro (batch)Advantage Delta
Preference Elo
1,248
lmarena · Aug 17, 2026
——
LiveBench
46.2%
livebench · Aug 17, 2026
——
SWE-bench
38.4%
swebench · Aug 17, 2026
——
GPQA Diamond
50.4%
seed-bootstrap · Aug 1, 2026
——
Time to first token
420 ms
seed-bootstrap · Aug 1, 2026
——
Output speed
48 tok/s
seed-bootstrap · Aug 1, 2026
——
Input price
$15/1M
seed-bootstrap · Aug 1, 2026
$2.5/1M
openrouter · Aug 17, 2026
+$12.5/1M
Output price
$75/1M
seed-bootstrap · Aug 1, 2026
$15/1M
openrouter · Aug 17, 2026
+$60/1M
Context window
200k
seed-bootstrap · Aug 1, 2026
1.1M
openrouter · Aug 17, 2026
+850k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 81% with OpenAI: GPT-5.6 Sol Pro (batch)
Monthly Volume50M tokens/mo
Quick Presets:
Token Ratio (In vs Out)70% In / 30% Out
RAG / Search (10% out)Coding / Chat (50% out)
Claude 3 Opus$1,650.00 / mo
In: $525Out: $1,125
OpenAI: GPT-5.6 Sol Pro (batch)$312.50 / mo
In: $87.5Out: $225
Estimated Cost Delta

OpenAI: GPT-5.6 Sol Pro (batch) is estimated to save $1,337.50/month ($16,050/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    OpenAI: GPT-5.6 Sol Pro (batch):Pick OpenAI: GPT-5.6 Sol Pro (batch) when you are optimizing output cost.
  • 2
    OpenAI: GPT-5.6 Sol Pro (batch):Pick OpenAI: GPT-5.6 Sol Pro (batch) for million-token RAG or long-document jobs.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatOpenAI: GPT-5.6 Sol Pro (batch)

Lower output list price ($15/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGOpenAI: GPT-5.6 Sol Pro (batch)

Larger window (1.1M).

Screenshots / visionClaude 3 Opus

Claude 3 Opus is the side marked multimodal in the catalog.

Target WorkloadRecommended PickEvaluation Rationale
Repo / coding agentsinsufficient dataNeed SWE-bench on both sides.
High-volume chatOpenAI: GPT-5.6 Sol Pro (batch)Lower output list price ($15/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGOpenAI: GPT-5.6 Sol Pro (batch)Larger window (1.1M).
Screenshots / visionClaude 3 OpusClaude 3 Opus is the side marked multimodal in the catalog.
Community Sentiment

Cast Your Matchup Vote

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
Anthropic

Claude 3 Opus

Elo 1,248
SWE-bench38.4%
Speed (tok/s)48 tok/s
Input / 1M Tokens$15/1M
Output / 1M Tokens$75/1M
OpenAI

OpenAI: GPT-5.6 Sol Pro (batch)

Elo n/a
SWE-bench—
Speed (tok/s)1.1M
Input / 1M Tokens$2.5/1M
Output / 1M Tokens$15/1M

Frequently Asked Questions

Which is better overall, Claude 3 Opus or OpenAI: GPT-5.6 Sol Pro (batch)?
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 3 Opus or OpenAI: GPT-5.6 Sol Pro (batch)?
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?
OpenAI: GPT-5.6 Sol Pro (batch) output tokens are $15/1M versus $75/1M. Input prices and retry rates still move the real bill.
Which is faster, Claude 3 Opus or OpenAI: GPT-5.6 Sol Pro (batch)?
We do not have TTFT for both models.
Which has the larger context window?
OpenAI: GPT-5.6 Sol Pro (batch) accepts 1.1M tokens versus 200k.
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 3 Opus and OpenAI: GPT-5.6 Sol Pro (batch) Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All Claude 3 Opus matchups →|All OpenAI: GPT-5.6 Sol Pro (batch) matchups →
Claude 3 Opus vs Claude Opus 4 (next opus)Claude Opus 4.5 vs Claude 3 OpusClaude Opus 4.6 vs Claude 3 OpusClaude Sonnet 4.5 vs Claude 3 OpusGPT-5 vs Claude 3 OpusGPT-4.5 Orion vs Claude 3 Opus