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Every score has a dated snapshot.

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

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

OpenAI: GPT-5.6 Sol Pro (batch) vs Grok 3 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: Both OpenAI: GPT-5.6 Sol Pro (batch) and Grok 3 present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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Verified Head-to-Head Advantage Breakdown

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

OpenAI: GPT-5.6 Sol Pro (batch) (2)Grok 3 (0)
OpenAI: GPT-5.6 Sol Pro (batch)
2 of 2 Wins
✓Input price✓Context window
Grok 3
0 of 2 Wins
Competitive baseline across remaining benchmarks
OpenAI
Leads 2 of 2 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
xAI
Grok 3

Previous xAI generation before Grok 4. Kept for grok 3 vs grok 4.

Elo 1,405$15/1M out
Top Rival Showdowns for OpenAI: GPT-5.6 Sol Pro (batch)
All Matchups
Compare vs:vs Claude Opus 4.5vs 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.

OpenAI: GPT-5.6 Sol Pro (batch) (2)vsGrok 3 (6)
OpenAI: GPT-5.6 Sol Pro (batch): 2W (25%)Overall: Grok 3Grok 3: 6W (75%)
← OpenAI: GPT-5.6 Sol Pro (batch)1 tiesGrok 3 →
🏆Grok 3(4/5)

Intelligence & Reasoning

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

Benchmark
OpenAI: GPT-5.6 Sol Pro (batch)vsGrok 3
Preference Elo
—vs1,405
Coding Elo
—vs—
SWE-bench
—vs51.4%
LiveBench
—vs60.2%
GPQA Diamond
—vs74.2%
OpenAI: GPT-5.6 Sol Pro (batch): 0WGrok 3: 4W
🏆Grok 3(2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
OpenAI: GPT-5.6 Sol Pro (batch)vsGrok 3
Output speed
—vs88 tok/s
Time to first token
—vs250 ms
OpenAI: GPT-5.6 Sol Pro (batch): 0WGrok 3: 2W
🏆OpenAI: GPT-5.6 Sol Pro (batch)(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
OpenAI: GPT-5.6 Sol Pro (batch)vsGrok 3
Output price
$15/1Mvs$15/1M
Input price
$2.5/1Mvs$3/1M+$0.5/1M
Context window
1.1Mvs131k+919k
OpenAI: GPT-5.6 Sol Pro (batch): 2WGrok 3: 0W

Side-by-Side Benchmark Matrix

Preference Elo
OpenAI: GPT-5.6 Sol Pro (batch)—
Grok 31,405
lmarena · Aug 17, 2026
LiveBench
OpenAI: GPT-5.6 Sol Pro (batch)—
Grok 360.2%
livebench · Aug 17, 2026
SWE-bench
OpenAI: GPT-5.6 Sol Pro (batch)—
Grok 351.4%
swebench · Aug 17, 2026
GPQA Diamond
OpenAI: GPT-5.6 Sol Pro (batch)—
Grok 374.2%
seed-bootstrap · Aug 1, 2026
Time to first token
OpenAI: GPT-5.6 Sol Pro (batch)—
Grok 3250 ms
seed-bootstrap · Aug 1, 2026
Output speed
OpenAI: GPT-5.6 Sol Pro (batch)—
Grok 388 tok/s
seed-bootstrap · Aug 1, 2026
Input price+$0.5/1M
OpenAI: GPT-5.6 Sol Pro (batch)$2.5/1M
openrouter · Aug 17, 2026
Grok 3$3/1M
seed-bootstrap · Aug 1, 2026
Output price
OpenAI: GPT-5.6 Sol Pro (batch)$15/1M
openrouter · Aug 17, 2026
Grok 3$15/1M
seed-bootstrap · Aug 1, 2026
Context window+919k
OpenAI: GPT-5.6 Sol Pro (batch)1.1M
openrouter · Aug 17, 2026
Grok 3131k
seed-bootstrap · Aug 1, 2026
BenchmarkOpenAI: GPT-5.6 Sol Pro (batch)Grok 3Advantage Delta
Preference Elo—
1,405
lmarena · Aug 17, 2026
—
LiveBench—
60.2%
livebench · Aug 17, 2026
—
SWE-bench—
51.4%
swebench · Aug 17, 2026
—
GPQA Diamond—
74.2%
seed-bootstrap · Aug 1, 2026
—
Time to first token—
250 ms
seed-bootstrap · Aug 1, 2026
—
Output speed—
88 tok/s
seed-bootstrap · Aug 1, 2026
—
Input price
$2.5/1M
openrouter · Aug 17, 2026
$3/1M
seed-bootstrap · Aug 1, 2026
+$0.5/1M
Output price
$15/1M
openrouter · Aug 17, 2026
$15/1M
seed-bootstrap · Aug 1, 2026
—
Context window
1.1M
openrouter · Aug 17, 2026
131k
seed-bootstrap · Aug 1, 2026
+919k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 5% 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)
OpenAI: GPT-5.6 Sol Pro (batch)$312.50 / mo
In: $87.5Out: $225
Grok 3$330.00 / mo
In: $105Out: $225
Estimated Cost Delta

OpenAI: GPT-5.6 Sol Pro (batch) is estimated to save $17.50/month ($210/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 / visionGrok 3

Grok 3 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 / visionGrok 3Grok 3 is the side marked multimodal in the catalog.
Community Sentiment

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CompareLLM AI Matrix

Verified Head-to-Head Telemetry

LIVE BENCHMARK
VS
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
xAI

Grok 3

Elo 1,405
SWE-bench51.4%
Speed (tok/s)88 tok/s
Input / 1M Tokens$3/1M
Output / 1M Tokens$15/1M

Frequently Asked Questions

Which is better overall, OpenAI: GPT-5.6 Sol Pro (batch) or Grok 3?
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, OpenAI: GPT-5.6 Sol Pro (batch) or Grok 3?
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 $15/1M. Input prices and retry rates still move the real bill.
Which is faster, OpenAI: GPT-5.6 Sol Pro (batch) or Grok 3?
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 131k.
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. OpenAI: GPT-5.6 Sol Pro (batch) and Grok 3 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Similar Head-to-Head Comparisons

All OpenAI: GPT-5.6 Sol Pro (batch) matchups →|All Grok 3 matchups →
Grok 3 vs Grok 4 (next grok)GPT-5 vs Grok 3Grok 4.6 vs Grok 3GPT-4.5 Orion vs Grok 3GPT-5.6 Sol vs Grok 3GPT-5.6 Terra vs Grok 3