#13 GPT-5.3-Codex
medium- Cost
- $0.049
- Time
- 54.9s
- Tokens
- 3,580 tok
OpenAI
Release: 2026-02-05
Tested on: 2026-06-04 13:45
openai/gpt-5.3-codex::medium
Summary
GPT-5.3-Codex scores 8.9 on AI BENCHY and ranks #13. It has 10.0 reliability, a 82.5% pass rate, $0.740 total cost, and 16.22s average response time.
8.9
Consistency
8.5
10.0
$0.740
Total Output Tokens
48,546
Total Input Tokens
34,299
Input Price
$1.750 / 1M
Output Price
$14.000 / 1M
Flaky tests
4
Flaky tests had mixed outcomes across runs (at least one pass and one fail).
Generation showcase
Hamster playing table tennis
Prompt: Create a detailed SVG illustration of a hamster playing table tennis.
Run history
| Tested on | Score | Reliability | Tests Correct | Total Cost | Compare |
|---|---|---|---|---|---|
| 2026-06-04 13:45 New test added | 8.4 | 10.0 | $0.740 | Current run | |
| 2026-05-22 00:19 Re-test | 8.3 | 10.0 | $0.685 | Compare | |
| 2026-04-11 01:44 First recorded run | 8.6 | N/A | $0.573 | Compare |
This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.
Run comparison
| Run | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|
| 2026-06-04 13:45 · Current run | 8.9 | 8.5 | 10.0 | 15/21 | 4 | 48,546 | 34,299 | $0.740 | 16.22s |
| 2026-04-11 01:44 · First recorded run | 8.6 | 8.7 | N/A | 13/18 | 3 | 37,458 | 0 | $0.573 | 15.38s |
| Difference | +0.4 | -0.2 | +2 | +1 | +11088 | +34299 | +$0.168 | +838ms |
These two runs used different benchmark suites, so the deltas reflect both model changes and suite changes.
Price History
Historical pricing data for this model from OpenRouter.
| Date | Input Price | Output Price |
|---|---|---|
| 2026-06-04 15:40 | $1.750 / 1M | $14.000 / 1M |
Charts
Choose the first model, then click a second model to open a side-by-side page.
Top Models by Score
Score vs Total Cost
Response Time (avg)
Score vs Response Time (avg)
Total Output Tokens
Score vs Total Output Tokens
Quick Compare
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Category Breakdown
| Category | Score | Consistency | Tests Correct |
|---|---|---|---|
| Anti-AI Tricks | 8.7 | 7.9 | |
| Coding | 10.0 | 10.0 | |
| Combined | 10.0 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 5.9 | 7.2 | |
| General Intelligence | 4.6 | 10.0 | |
| Instructions following | 10.0 | 10.0 | |
| Puzzle Solving | 9.0 | 7.9 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 2.8 | 1.6 |