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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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  2. Comparisons
  3. OpenAI: GPT Chat Latest vs Grok 3

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

OpenAI: GPT Chat Latest vs Grok 3 benchmark

In this head-to-head showdown, Grok 3 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 OpenAI: GPT Chat Latest if your priority is peak reasoning, complex code generation, and top preference Elo. Choose Grok 3 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

OpenAI: GPT Chat Latest (1)Grok 3 (2)
OpenAI: GPT Chat Latest
1 of 3 Wins
✓Context window
Grok 3
2 of 3 Wins
✓Input price✓Output price
OpenAI
Leads 1 of 3 metrics
OpenAI: GPT Chat Latest

Auto-discovered from OpenRouter (openai/gpt-chat-latest). Preview until a second source matches.

$30/1M out
xAI
Leads 2 of 3 metrics
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 Chat Latest
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 LeaderGrok 3 Wins

Grok 3

$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 Chat Latest (1)vsGrok 3 (8)
OpenAI: GPT Chat Latest: 1W (11%)Overall: Grok 3Grok 3: 8W (89%)
← OpenAI: GPT Chat LatestGrok 3 →
🏆Grok 3(4/5)

Intelligence & Reasoning

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

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

Speed & Latency

Generation throughput and time to first token responsiveness

Benchmark
OpenAI: GPT Chat LatestvsGrok 3
Output speed
—vs88 tok/s
Time to first token
—vs250 ms
OpenAI: GPT Chat Latest: 0WGrok 3: 2W
🏆Grok 3(2/3)

Pricing & Capacity

Cost per million tokens and max context window length

Benchmark
OpenAI: GPT Chat LatestvsGrok 3
Output price
$30/1Mvs$15/1M+$15/1M
Input price
$5/1Mvs$3/1M+$2/1M
Context window
400kvs131k+269k
OpenAI: GPT Chat Latest: 1WGrok 3: 2W

Side-by-Side Benchmark Matrix

Preference Elo
OpenAI: GPT Chat Latest—
Grok 31,405
lmarena · Aug 17, 2026
LiveBench
OpenAI: GPT Chat Latest—
Grok 360.2%
livebench · Aug 17, 2026
SWE-bench
OpenAI: GPT Chat Latest—
Grok 351.4%
swebench · Aug 17, 2026
GPQA Diamond
OpenAI: GPT Chat Latest—
Grok 374.2%
seed-bootstrap · Aug 1, 2026
Time to first token
OpenAI: GPT Chat Latest—
Grok 3250 ms
seed-bootstrap · Aug 1, 2026
Output speed
OpenAI: GPT Chat Latest—
Grok 388 tok/s
seed-bootstrap · Aug 1, 2026
Input price+$2/1M
OpenAI: GPT Chat Latest$5/1M
openrouter · Aug 17, 2026
Grok 3$3/1M
seed-bootstrap · Aug 1, 2026
Output price+$15/1M
OpenAI: GPT Chat Latest$30/1M
openrouter · Aug 17, 2026
Grok 3$15/1M
seed-bootstrap · Aug 1, 2026
Context window+269k
OpenAI: GPT Chat Latest400k
openrouter · Aug 17, 2026
Grok 3131k
seed-bootstrap · Aug 1, 2026
BenchmarkOpenAI: GPT Chat LatestGrok 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
$5/1M
openrouter · Aug 17, 2026
$3/1M
seed-bootstrap · Aug 1, 2026
+$2/1M
Output price
$30/1M
openrouter · Aug 17, 2026
$15/1M
seed-bootstrap · Aug 1, 2026
+$15/1M
Context window
400k
openrouter · Aug 17, 2026
131k
seed-bootstrap · Aug 1, 2026
+269k
Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 47% with Grok 3
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 Chat Latest$625.00 / mo
In: $175Out: $450
Grok 3$330.00 / mo
In: $105Out: $225
Estimated Cost Delta

Grok 3 is estimated to save $295.00/month ($3,540/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    Grok 3:Pick Grok 3 when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatGrok 3

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

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGOpenAI: GPT Chat Latest

Larger window (400k).

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 chatGrok 3Lower output list price ($15/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGOpenAI: GPT Chat LatestLarger window (400k).
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 Chat Latest

Elo n/a
SWE-bench—
Speed (tok/s)400k
Input / 1M Tokens$5/1M
Output / 1M Tokens$30/1M
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 Chat Latest 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 Chat Latest 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?
Grok 3 output tokens are $15/1M versus $30/1M. Input prices and retry rates still move the real bill.
Which is faster, OpenAI: GPT Chat Latest or Grok 3?
We do not have TTFT for both models.
Which has the larger context window?
OpenAI: GPT Chat Latest accepts 400k 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 Chat Latest 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 Chat Latest 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