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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. OpenAI: GPT-3.5 Turbo 16k vs Grok 4

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

OpenAI: GPT-3.5 Turbo 16k vs Grok 4 benchmark

In this head-to-head showdown, OpenAI: GPT-3.5 Turbo 16k is more budget-friendly at $4/1M 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-3.5 Turbo 16k and Grok 4 present distinct architectural strengths. Compare the verified benchmark matrix below to choose the model tailored to your specific application requirements.
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OpenAI
OpenAI: GPT-3.5 Turbo 16k

Auto-discovered from OpenRouter (openai/gpt-3.5-turbo-16k). Preview until a second source matches.

$4/1M out
xAI
Grok 4

Previous xAI flagship.

Grok 4.0Elo 1,488$15/1M out
Top Rival Showdowns for OpenAI: GPT-3.5 Turbo 16k
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 Leader

OpenAI: GPT-3.5 Turbo 16k

$4 / 1M output

Capability Percentiles

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

Capability Matchup Radar

Multi-Dimensional Capability Radar

Each spoke is a skill. Farther from the center is better (0–100th percentile). Tap any dot to inspect details.

Tap any node to inspect
Percentile 0–100
Dimensional AdvantageGrok 4 5/6
Head-to-Head Comparison

Overall Matchup Breakdown

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

OpenAI: GPT-3.5 Turbo 16k (1)vsGrok 4 (7)
OpenAI: GPT-3.5 Turbo 16k: 1W (13%)Overall: Grok 4Grok 4: 7W (87%)
← OpenAI: GPT-3.5 Turbo 16k1 tiesGrok 4 →
Grok 4 (4/5)

Intelligence & Reasoning

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

Preference Elo
—vs1,488
Coding Elo
—vs—
SWE-bench
—vs58.6%
LiveBench
—vs64.1%
GPQA Diamond
—vs79%
OpenAI: GPT-3.5 Turbo 16k: 0WGrok 4: 4W
Grok 4 (2/2)

Speed & Latency

Generation throughput and time to first token responsiveness

Output speed
—vs98 tok/s
Time to first token
—vs230 ms
OpenAI: GPT-3.5 Turbo 16k: 0WGrok 4: 2W
Tied (1/3)

Pricing & Capacity

Cost per million tokens and max context window length

Output price
$4/1Mvs$15/1M
Input price
$3/1Mvs$3/1M
Context window
16kvs256k
OpenAI: GPT-3.5 Turbo 16k: 1WGrok 4: 1W

Side-by-Side Benchmark Matrix

Preference Elo
OpenAI: GPT-3.5 Turbo 16k—
Grok 41,488
lmarena · Aug 17, 2026
LiveBench
OpenAI: GPT-3.5 Turbo 16k—
Grok 464.1%
livebench · Aug 17, 2026
SWE-bench
OpenAI: GPT-3.5 Turbo 16k—
Grok 458.6%
swebench · Aug 17, 2026
GPQA Diamond
OpenAI: GPT-3.5 Turbo 16k—
Grok 479%
seed-bootstrap · Aug 1, 2026
Time to first token
OpenAI: GPT-3.5 Turbo 16k—
Grok 4230 ms
seed-bootstrap · Aug 1, 2026
Output speed
OpenAI: GPT-3.5 Turbo 16k—
Grok 498 tok/s
seed-bootstrap · Aug 1, 2026
Input price
OpenAI: GPT-3.5 Turbo 16k$3/1M
openrouter · Aug 17, 2026
Grok 4$3/1M
seed-bootstrap · Aug 1, 2026
Output priceOpenAI: GPT-3.5 Turbo 16k (+$11/1M)
OpenAI: GPT-3.5 Turbo 16k$4/1M
openrouter · Aug 17, 2026
Grok 4$15/1M
seed-bootstrap · Aug 1, 2026
Context windowGrok 4 (+240k)
OpenAI: GPT-3.5 Turbo 16k16k
openrouter · Aug 17, 2026
Grok 4256k
seed-bootstrap · Aug 1, 2026
BenchmarkOpenAI: GPT-3.5 Turbo 16kGrok 4Advantage Delta
Preference Elo—
1,488
lmarena · Aug 17, 2026
—
LiveBench—
64.1%
livebench · Aug 17, 2026
—
SWE-bench—
58.6%
swebench · Aug 17, 2026
—
GPQA Diamond—
79%
seed-bootstrap · Aug 1, 2026
—
Time to first token—
230 ms
seed-bootstrap · Aug 1, 2026
—
Output speed—
98 tok/s
seed-bootstrap · Aug 1, 2026
—
Input price
$3/1M
openrouter · Aug 17, 2026
$3/1M
seed-bootstrap · Aug 1, 2026
—
Output price
$4/1M
openrouter · Aug 17, 2026
$15/1M
seed-bootstrap · Aug 1, 2026
OpenAI: GPT-3.5 Turbo 16k (+$11/1M)
Context window
16k
openrouter · Aug 17, 2026
256k
seed-bootstrap · Aug 1, 2026
Grok 4 (+240k)
Interactive Simulator (USD)

Workload Cost & Savings Calculator

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

Save up to 50% with OpenAI: GPT-3.5 Turbo 16k
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-3.5 Turbo 16k$165.00 / mo
In: $105Out: $60
Grok 4$330.00 / mo
In: $105Out: $225
Estimated Cost Delta

OpenAI: GPT-3.5 Turbo 16k is estimated to save $165.00/month ($1,980/year).

Based on 50M tokens (30% gen)

Key Selection Recommendations

  • 1
    OpenAI: GPT-3.5 Turbo 16k:Pick OpenAI: GPT-3.5 Turbo 16k when you are optimizing output cost.

Recommended Workload Routing

Repo / coding agentsinsufficient data

Need SWE-bench on both sides.

High-volume chatOpenAI: GPT-3.5 Turbo 16k

Lower output list price ($4/1M).

Voice / low-latency UIinsufficient data

Need TTFT on both sides.

Long-document RAGGrok 4

Larger window (256k).

Screenshots / visionGrok 4

Grok 4 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-3.5 Turbo 16kLower output list price ($4/1M).
Voice / low-latency UIinsufficient dataNeed TTFT on both sides.
Long-document RAGGrok 4Larger window (256k).
Screenshots / visionGrok 4Grok 4 is the side marked multimodal in the catalog.

Related Editorial Dispatches & Benchmark Notes

View all news
launchJul 10, 2025

Grok 4 remains the previous xAI flagship on this catalog

2025-07 row. 4.6 is the buy. We keep 4 so upgrade pairs and old inbound links resolve.

Community Sentiment

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CompareLLM Matrix

Verified head-to-head card

LIVE
VS
OpenAI

OpenAI: GPT-3.5 Turbo 16k

Elo n/a
LiveBench—
SWE-bench—
Speed—
Output cost$4/1M
xAI

Grok 4

Elo 1,488
LiveBench64.1%
SWE-bench58.6%
Speed98 tok/s
Output cost$15/1M

Frequently Asked Questions

Which is better overall, OpenAI: GPT-3.5 Turbo 16k or Grok 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, OpenAI: GPT-3.5 Turbo 16k or Grok 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?
OpenAI: GPT-3.5 Turbo 16k output tokens are $4/1M versus $15/1M. Input prices and retry rates still move the real bill.
Which is faster, OpenAI: GPT-3.5 Turbo 16k or Grok 4?
We do not have TTFT for both models.
Which has the larger context window?
Grok 4 accepts 256k tokens versus 16k.
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-3.5 Turbo 16k and Grok 4 Elo cells are dated snapshots from the named source — we do not compute Arena ourselves.

Related news

  • launch · Jul 10, 2025

    Grok 4 remains the previous xAI flagship on this catalog

Similar Head-to-Head Comparisons

All OpenAI: GPT-3.5 Turbo 16k matchups →|All Grok 4 matchups →
Grok 4 vs Grok 3 (previous grok)Grok 4 vs Grok 4.6 (next grok)GPT-5 vs Grok 4GPT-4.5 Orion vs Grok 4GPT-5.6 Sol vs Grok 4GPT-5.6 Terra vs Grok 4