Data points: 85
Model compare
The readout for GPT-5.3 Codex and MiMo-V2-Omni, before the detailed comparison sheet.
Weighted outcome: GPT-5.3 Codex. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
Decision read
GPT-5.3 Codex
GPT-5.3 Codex has the higher weighted result; Model A / B score 92 to 8.
Evidence depth
85 data points
Includes 15 benchmark rows, 0 audit samples, and 7 provider examples.
Selection signal
Start with GPT-5.3 Codex
The charts below split 22 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.
This report only uses LMSpeed data for GPT-5.3 Codex and MiMo-V2-Omni: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
| Model compare | GPT-5.3 Codex | MiMo-V2-Omni |
|---|---|---|
| Overall leader | Leading | Contender |
| Weighted overall score | 92.0 pts | 8.0 pts |
| Benchmark category leads | 5 categories | 0 categories |
| Operational advantages | Cheapest input price, Free providers, Provider coverage | Average speed, First-token latency |
| Context window | 400K tokens | No data |
| Max output | 128K tokens | No data |
| Modalities | Input TextImageFile Output Text | No data |
The overall result weights benchmark capability categories at 80% and price, API speed/latency, and availability at 20%. Recent test volume does not affect the winner, and missing benchmark categories are excluded.
| Model compare | GPT-5.3 Codex | MiMo-V2-Omni |
|---|---|---|
| Developer | OpenAI | No data |
| Released | Feb 2026 | No data |
| Parameters | No data | No data |
| Tokenizer | GPT | No data |
| Knowledge cutoff | No data | No data |
| OpenRouter ID | openai/gpt-5.3-codex | No data |
| References | No data | No data |
This report only uses LMSpeed data for GPT-5.3 Codex and MiMo-V2-Omni: pricing, speed aggregates, third-party benchmark scores, and shared provider samples.
GPT-5.3 Codex
GPT-5.3 Codex is stronger in benchmark categories (Agents, Coding, Reasoning, Knowledge, Instruction following) and operational dimensions (Cheapest input price, Free providers, Provider coverage).
MiMo-V2-Omni
MiMo-V2-Omni has these operational advantages: Average speed, First-token latency.
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
56.7
Avg. score
MiMo-V2-Omni
48.1
GPT-5.3 Codex leads by 11.7
GPT-5.3 Codex leads by 9.6
GPT-5.3 Codex leads by 7.1
GPT-5.3 Codex leads by 7.1
No data
No data
No data
GPT-5.3 Codex leads by 7.4
Metric-level scores with benchmark source, rank depth, confidence, error, and evaluation date where available.
GPT-5.3 Codex
winner74.0
Rank #5/89 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
66.7
Rank #34/89 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner91.5%
Rank #11/187 · confidence 4
MiMo-V2-Omni
85.5%
Rank #42/187 · confidence 4
GPT-5.3 Codex
winner16.9
Rank #12/73 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
1.1
Rank #54/73 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner39.9%
Rank #12/186 · confidence 4
MiMo-V2-Omni
20.4%
Rank #53/186 · confidence 4
GPT-5.3 Codex
winner85.0
Rank #5/43 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
74.8
Rank #25/43 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner53.2%
Rank #10/184 · confidence 4
MiMo-V2-Omni
39.5%
Rank #77/184 · confidence 4
GPT-5.3 Codex
winner53.2
Rank #14/96 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
36.7
Rank #72/96 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner51.8
Rank #8/90 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
18.7
Rank #78/90 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner39.9
Rank #11/96 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
19.9
Rank #53/96 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner91.5
Rank #12/96 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
82.8
Rank #53/96 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner44.3
Rank #16/99 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
35.0
Rank #45/99 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner86.9
Rank #23/90 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
44.4
Rank #71/90 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner78.5
Rank #14/57 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
69.9
Rank #42/57 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
winner75.4
Rank #21/86 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
53.5
Rank #57/86 · confidence 1 · eval date 2026-03-18
GPT-5.3 Codex
86.0
Rank #41/84 · confidence 1 · eval date 2026-02-05
MiMo-V2-Omni
winner91.2
Rank #31/84 · confidence 1 · eval date 2026-03-18
Latest completed audits from shared providers, with four safety and integrity score groups plus report links.
| Provider | GPT-5.3 Codex | MiMo-V2-Omni |
|---|---|---|
| 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 | MiMo-V2-Omni |
|---|---|---|
35 tests | GPT-5.3 Codex speed / latency 38 tok/s / 4553ms input / output No data | MiMo-V2-Omni speed / latency N/A / N/A input / output No data |
25 tests | GPT-5.3 Codex speed / latency |
Weighted outcome: GPT-5.3 Codex. Benchmark capability categories carry 80%, while price, API performance, and availability carry 20%.
| Features | Text inputImage inputFile inputText outputTool callingStructured outputsJSON modeReasoning | None listed |
|---|
56 tok/s / 4621ms
input / output
No data
MiMo-V2-Omni speed / latency N/A / N/A input / output No data |
小水管 API10 tests | GPT-5.3 Codex speed / latency 201 tok/s / 2135ms input / output No data | MiMo-V2-Omni speed / latency N/A / N/A input / output No data |
|---|
91VIP5 tests | GPT-5.3 Codex speed / latency 35 tok/s / 17640ms input / output No data | MiMo-V2-Omni 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 | MiMo-V2-Omni 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 | MiMo-V2-Omni mimo-v2-omni speed / latency No data input / output $0.011/request |
GPT-5.3 Codex gpt-5.3-codex-spark speed / latency No data input / output $0.048/M/$0.384/M | MiMo-V2-Omni mimo-v2-omni speed / latency No data input / output $0.019/M/$0.038/M |
