#86 GPT 5.3 Chat
none- Cost
- $0.008
- Time
- 8.1s
- Tokens
- 634 tok
OpenAI
Release: 2026-03-03
Tested on: 2026-08-14 02:24
openai/gpt-5.3-chat::none
~400B total (~17B active)MoEClosedEstimated Summary
GPT 5.3 Chat scores 7.5 on AI BENCHY and ranks #86. It has 10.0 reliability, a 65.2% pass rate, $0.533 total cost, and 6.56s average response time.
What makes GPT 5.3 Chat unique: It stands out most in Puzzle Solving, where it ranks #1, while Domain specific is its weakest area at #14.
Model facts
Researched on 2026-08-12
- Parameters
- ~400B total (~17B active)
- Architecture
- MoE
- Availability
- Closed
- License
- -
Best estimate from public evidence; the vendor did not disclose every value. Vendor does not disclose the architecture or count.
7.5
Consistency
8.6
10.0
$0.533
Total Output Tokens
28,179
Total Input Tokens
78,846
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).
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 |
|---|---|---|---|---|---|
| 2026-08-14 02:24 Re-test | 7.5 | 10.0 | $0.533 | Current run | |
| 2026-07-16 22:40 New test added | 7.5 | 10.0 | $0.571 | Compare | |
| 2026-06-04 13:47 New test added | 7.2 | 10.0 | $0.433 | Compare | |
| 2026-05-22 00:20 Re-test | 7.4 | 10.0 | $0.401 | Compare | |
| 2026-04-11 01:44 First recorded run | 7.7 | N/A | $0.340 | Compare |
This run used a different benchmark suite. Keep suite changes in mind when reading historical movement.
Run comparison
| Run | Benchmark coverage | Score | Consistency | Reliability | Tests Correct | Flaky tests | Total Output Tokens | Total Input Tokens | Total Cost | Response Time (avg) |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026-08-14 02:24 · Current run | 66/66 attempts | 7.5 | 8.6 | 10.0 | 13/22 | 4 | 28,179 | 78,846 | $0.533 | 6.56s |
| 2026-07-16 22:40 · New test added | 66/66 attempts | 7.5 | 8.2 | 10.0 | 13/22 | 5 | 30,854 | 78,990 | $0.571 | 6.88s |
| Difference | — | 0.0 | +0.4 | 0.0 | 0 | -1 | -2675 | -144 | -$0.038 | -317ms |
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 |
|---|---|---|
| 2026-08-14 12:51 | $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 | 6.7 | 8.1 | |
| Coding | 5.6 | 4.7 | |
| Combined | 10.0 | 10.0 | |
| Data parsing and extraction | 10.0 | 10.0 | |
| Domain specific | 2.9 | 7.2 | |
| General Intelligence | 4.6 | 10.0 | |
| Instructions following | 9.8 | 10.0 | |
| Puzzle Solving | 10.0 | 10.0 | |
| Tool Calling | 10.0 | 10.0 | |
| Trivia | 3.0 | 10.0 |