Data points: 123
The readout for GPT-5.3 Codex and Llama 4 Maverick, before the detailed comparison sheet.
Decision read
GPT-5.3 Codex
GPT-5.3 Codex currently has the stronger profile, with verified wins split 3 to 1.
Evidence depth
123 data points
Includes 29 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5.3 Codex
The charts below split 36 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 Llama 4 Maverickgpt-5-3-codex-vs-llama-4-maverick | Model A GPT-5.3 Codex | Model B Llama 4 Maverick |
|---|---|---|
| Overall leader | Leading | Contender |
| Verified metric wins | 3 wins | 1 wins |
| Where it leads | 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
58.2
Avg. score
Llama 4 Maverick
41.5
Selected category
Coding
GPT-5.3 Codex leads by 20.6
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.3 Codex
winner82.0
Rank #11/127 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
19.0
Rank #110/127 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
81.50 s
Rank #134/139 · confidence 4
Llama 4 Maverick
winner0.63 s
Rank #15/139 · confidence 4
GPT-5.3 Codex
81.50 s
Rank #136/139 · confidence 4
Llama 4 Maverick
winner0.63 s
Rank #22/139 · confidence 4
GPT-5.3 Codex
83.3 tok/s
Rank #77/139 · confidence 4
Llama 4 Maverick
winner114.4 tok/s
Rank #54/139 · confidence 4
GPT-5.3 Codex
$14.00/M
Rank #139/167 · confidence 4
Llama 4 Maverick
winner$0.850/M
Rank #35/167 · confidence 4
GPT-5.3 Codex
$4.81/M
Rank #138/167 · confidence 4
Llama 4 Maverick
winner$0.475/M
Rank #40/167 · confidence 4
GPT-5.3 Codex
$1.75/M
Rank #126/167 · confidence 4
Llama 4 Maverick
winner$0.350/M
Rank #58/167 · confidence 4
GPT-5.3 Codex
winner87.7
Rank #3/70 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
31.6
Rank #57/70 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner74.0
Rank #5/88 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
46.0
Rank #69/88 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner91.5%
Rank #11/187 · confidence 4
Llama 4 Maverick
67.1%
Rank #122/187 · confidence 4
GPT-5.3 Codex
winner39.9%
Rank #12/186 · confidence 4
Llama 4 Maverick
4.8%
Rank #139/186 · confidence 4
GPT-5.3 Codex
winner53.0
Rank #8/86 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
6.8
Rank #78/86 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner83.6
Rank #10/100 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
11.7
Rank #98/100 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner53.2%
Rank #10/184 · confidence 4
Llama 4 Maverick
33.1%
Rank #120/184 · confidence 4
GPT-5.3 Codex
winner53.2
Rank #13/95 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
33.1
Rank #80/95 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner89.2
Rank #4/92 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
16.4
Rank #89/92 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner51.8
Rank #7/89 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
24.3
Rank #60/89 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner39.9
Rank #10/95 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
4.8
Rank #80/95 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner91.5
Rank #11/95 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
67.1
Rank #78/95 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner44.3
Rank #15/98 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
14.3
Rank #83/98 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
86.9
Rank #23/89 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
winner87.3
Rank #21/89 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner95.2
Rank #5/62 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
2.8
Rank #57/62 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner91.4
Rank #2/81 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
37.8
Rank #69/81 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner78.5
Rank #14/57 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
62.1
Rank #48/57 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner1205.0
Rank #41/61 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
914.0
Rank #58/61 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner87.8
Rank #11/75 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
39.3
Rank #67/75 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner75.4
Rank #21/87 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
43.0
Rank #65/87 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner78.1
Rank #21/95 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
12.1
Rank #95/95 · confidence 1 · eval date 2026-02-28
GPT-5.3 Codex
winner86.0
Rank #42/85 · confidence 1 · eval date 2026-02-05
Llama 4 Maverick
17.8
Rank #82/85 · confidence 1 · eval date 2026-02-28
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.3 Codex | Llama 4 Maverick |
|---|---|---|
| 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 | Llama 4 Maverick |
|---|---|---|
5 tests | GPT-5.3 Codex speed / latency 35 tok/s / 17640ms input / output No data |
This report only uses LMSpeed data for GPT-5.3 Codex and Llama 4 Maverick: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Guidance | GPT-5.3 Codex | Llama 4 Maverick |
|---|---|---|
| When to choose each model | GPT-5.3 Codex GPT-5.3 Codex is stronger when you prioritize Free providers, Provider coverage, Recent tests. | Llama 4 Maverick Llama 4 Maverick is stronger when you prioritize Cheapest input price. |
TL;DR: GPT-5.3 Codex leads across 123 verifiable data points, including pricing, speed, latency, benchmarks, and provider examples.
Continue from GPT-5.3 Codex vs Llama 4 Maverick into nearby model comparisons with enough verified LMSpeed data.
| Cheapest input price |
| Model metadata | GPT-5.3 Codex exposes 400K tokens; notable signals: Text input, Image input, File input, Text output. | Llama 4 Maverick exposes 1.0M tokens; notable signals: Text input, Image input, Text output, Tool calling. |
|---|---|---|
| Developer | OpenAI | Meta |
| Context window | 400K tokens | 1.0M tokens |
| Max output | 128K tokens | 16.4K tokens |
| Released | Feb 2026 | Apr 2025 |
| Modalities | Input TextImageFile Output Text | Input TextImage Output Text |
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | Text inputImage inputText outputTool callingStructured outputsJSON mode |
| Parameters | No data | 17B |
| Tokenizer | GPT | Llama4 |
| Knowledge cutoff | No data | 2024-08-31 |
| OpenRouter ID | openai/gpt-5.3-codex | meta-llama/llama-4-maverick |
| References | No data | No data |
Llama 4 Maverick
speed / latency
N/A / N/A
input / output
No data
Seamee API5 tests | GPT-5.3 Codex speed / latency 53 tok/s / 3889ms input / output No data | Llama 4 Maverick speed / latency N/A / N/A input / output No data |
|---|
AI API0 tests | GPT-5.3 Codex speed / latency N/A / N/A input / output No data | Llama 4 Maverick speed / latency N/A / N/A input / output No data |
|---|
APDSM0 tests | GPT-5.3 Codex speed / latency N/A / N/A input / output No data | Llama 4 Maverick speed / latency N/A / N/A input / output No data |
|---|
CHB API0 tests | GPT-5.3 Codex speed / latency N/A / N/A input / output No data | Llama 4 Maverick speed / latency N/A / N/A input / output No data |
|---|
GPT-5.3 Codex gpt-5.3-codex speed / latency No data input / output $0.240/M/$1.92/M | Llama 4 Maverick llama-4-maverick speed / latency No data input / output $0.0038/M/$0.019/M |
GPT-5.3 Codex gpt-5.3-codex speed / latency No data input / output $0.120/M/$0.959/M | Llama 4 Maverick meta-llama/llama-4-maverick speed / latency No data input / output $0.015/M/$0.066/M |
Rankings are based on community-submitted tests and periodic health probes. Advisory only, not official data.
