Data points: 64
The readout for Gemini 2.5 Pro and GPT-3.5 Turbo Instruct, before the detailed comparison sheet.
Decision read
Gemini 2.5 Pro
Gemini 2.5 Pro currently has the stronger profile, with verified wins split 4 to 0.
Evidence depth
64 data points
Includes 0 benchmark rows, 0 audit samples, and 9 provider examples.
Selection signal
Start with Gemini 2.5 Pro
The charts below split 9 high-signal samples across speed, scores, and audit health.
Switch either side of this report to compare another model with the same LMSpeed data pipeline.
Select a different model to open a new comparison URL.
Model compare Gemini 2.5 Pro vs GPT-3.5 Turbo Instructgemini-2-5-pro-vs-gpt-3-5-turbo-instruct | Model A Gemini 2.5 Pro | Model B GPT-3.5 Turbo Instruct |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 4 wins | 0 wins |
| Where it leads | Cheapest input price, Free providers, Provider coverage, Recent tests |
Third-party benchmark profile synced into LMSpeed; only metrics available for both models are shown.
Compare benchmark category scores on a 0-100 scale. Select a category to inspect the gap.
Avg. score
Gemini 2.5 Pro
60.8
Avg. score
GPT-3.5 Turbo Instruct
-
Selected category
Agents
Gemini 2.5 Pro
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
No shared professional benchmark scores are available yet.
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | Gemini 2.5 Pro | GPT-3.5 Turbo Instruct |
|---|---|---|
| No completed audits are available from shared providers yet. | ||
Speed aggregates and input/output pricing share each provider row for real API selection and migration cost checks.
| Provider | Gemini 2.5 Pro | GPT-3.5 Turbo Instruct |
|---|---|---|
0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data |
This report only uses LMSpeed data for Gemini 2.5 Pro and GPT-3.5 Turbo Instruct: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | Gemini 2.5 Pro | GPT-3.5 Turbo Instruct |
|---|---|---|
| When to choose each model | Gemini 2.5 Pro Gemini 2.5 Pro is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. | GPT-3.5 Turbo Instruct GPT-3.5 Turbo Instruct does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. |
TL;DR: Gemini 2.5 Pro leads across 64 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from Gemini 2.5 Pro vs GPT-3.5 Turbo Instruct into nearby model comparisons with enough verified LMSpeed data.
| No data |
| Model metadata | Gemini 2.5 Pro exposes 1.0M tokens; notable signals: Text input, Image input, File input, Audio input. | GPT-3.5 Turbo Instruct exposes 4.1K tokens; notable signals: Text input, Text output, Structured outputs, JSON mode. |
|---|---|---|
| Developer | OpenAI | |
| Context window | 1.0M tokens | 4.1K tokens |
| Max output | 65.5K tokens | 4.1K tokens |
| Released | Jun 2025 | Sep 2023 |
| Modalities | Input TextImageFileAudiovideo Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputAudio inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputStructured outputsJSON mode |
| Parameters | No data | No data |
| Tokenizer | Gemini | GPT |
| Knowledge cutoff | 2025-01-31 | 2021-09-30 |
| OpenRouter ID | google/gemini-2.5-pro | openai/gpt-3.5-turbo-instruct |
| References | No data | No data |
GPT-3.5 Turbo Instruct
speed / latency
N/A / N/A
input / output
No data
AI API0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-3.5 Turbo Instruct speed / latency N/A / N/A input / output No data |
|---|
AIGCBAR0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-3.5 Turbo Instruct speed / latency N/A / N/A input / output No data |
|---|
AIO通用智能服务平台0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-3.5 Turbo Instruct speed / latency N/A / N/A input / output No data |
|---|
AIsa0 tests | Gemini 2.5 Pro speed / latency N/A / N/A input / output No data | GPT-3.5 Turbo Instruct speed / latency N/A / N/A input / output No data |
|---|
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.014/M / $0.014/M | GPT-3.5 Turbo Instruct gpt-3.5-turbo-instruct-0914 speed / latency No data input / output $10.27/M / $13.70/M |
Gemini 2.5 Pro gemini-2.5-pro speed / latency No data input / output $0.051/M / $0.411/M | GPT-3.5 Turbo Instruct gpt-3.5-turbo-instruct-0914 speed / latency No data input / output $3.08/M / $4.11/M |
Gemini 2.5 Pro gemini-2.5-pro-c speed / latency No data input / output $0.100/M / $0.100/M | GPT-3.5 Turbo Instruct gpt-3.5-turbo-instruct speed / latency No data input / output $1.50/M / $3.00/M |
Gemini 2.5 Pro gemini-2.5-pro-preview-06-05 speed / latency No data input / output $0.171/M / $1.37/M | GPT-3.5 Turbo Instruct gpt-3.5-turbo-instruct speed / latency No data input / output $0.205/M / $0.411/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
