Data points: 41
The readout for GPT-5.3 Codex and Olmo 3 32B Think, before the detailed comparison sheet.
Decision read
GPT-5.3 Codex
GPT-5.3 Codex currently has the stronger profile, with verified wins split 4 to 0.
Evidence depth
41 data points
Includes 3 benchmark rows, 0 audit samples, and 1 provider examples.
Selection signal
Start with GPT-5.3 Codex
The charts below split 4 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 GPT-5.3 Codex vs Olmo 3 32B Thinkgpt-5-3-codex-vs-olmo-3-32b-think | Model A GPT-5.3 Codex | Model B Olmo 3 32B Think |
|---|---|---|
| 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
GPT-5.3 Codex
67.6
Avg. score
Olmo 3 32B Think
47.8
Selected category
Coding
GPT-5.3 Codex leads by 12.3
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.3 Codex
winner91.5%
Rank #6/152 · confidence 4
Olmo 3 32B Think
61.0%
Rank #111/152 · confidence 4
GPT-5.3 Codex
winner39.9%
Rank #8/150 · confidence 4
Olmo 3 32B Think
5.9%
Rank #99/150 · confidence 4
GPT-5.3 Codex
winner53.2%
Rank #7/149 · confidence 4
Olmo 3 32B Think
28.6%
Rank #114/149 · confidence 4
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.3 Codex | Olmo 3 32B Think |
|---|---|---|
| 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 | GPT-5.3 Codex | Olmo 3 32B Think |
|---|---|---|
0 tests | GPT-5.3 Codex gpt-5.3-codex speed / latency N/A / N/A input / output $3.50/M / $28.00/M |
This report only uses LMSpeed data for GPT-5.3 Codex and Olmo 3 32B Think: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.3 Codex | Olmo 3 32B Think |
|---|---|---|
| When to choose each model | GPT-5.3 Codex GPT-5.3 Codex is stronger when you prioritize Cheapest input price, Free providers, Provider coverage, Recent tests. | Olmo 3 32B Think Olmo 3 32B Think does not clearly lead on the verified metrics here, so check provider-specific pricing before choosing. |
TL;DR: GPT-5.3 Codex leads across 41 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.3 Codex vs Olmo 3 32B Think into nearby model comparisons with enough verified LMSpeed data.
| No data |
| Model metadata | GPT-5.3 Codex exposes 400K tokens; notable signals: Text input, Image input, File input, Text output. | Olmo 3 32B Think exposes 65.5K tokens; notable signals: Text input, Text output, Structured outputs, JSON mode. |
|---|---|---|
| Developer | OpenAI | AllenAI |
| Context window | 400K tokens | 65.5K tokens |
| Max output | 128K tokens | 65.5K tokens |
| Released | Feb 2026 | No data |
| Modalities | Input TextImageFile Output Text | Input Text Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputText outputStructured outputsJSON modeReasoning |
| Parameters | No data | 32B |
| Tokenizer | GPT | Other |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.3-codex | allenai/olmo-3-32b-think |
| References | No data | No data |
Olmo 3 32B Think
allenai/olmo-3-32b-think
speed / latency
N/A / N/A
input / output
$0.300/M / $1.000/M
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
