# Confidence Calibration on SimpleQA

Source: [Confidence Calibration on SimpleQA](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2026-02-26T05:37:56.351Z

Evaluation of model confidence calibration performance on the SimpleQA dataset, measured using metrics including SNR Gain, Conf AUC, Absolute Accuracy, Smooth ECE, Brier Score, NLL, and Prediction Accuracy.

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

| Scope | Recorded value |
| --- | --- |
| Task | Confidence Calibration |
| Dataset (including any stated split) | SimpleQA |
| Metric | Brier Score |
| Unit | SCALAR |
| Direction | Lower is better |
| Results loaded | 27 of 27 |
| Coverage | All results currently returned for this benchmark |

Evaluation settings may differ between results. The original papers and recorded configurations are needed to establish comparability. A shared metric name alone does not establish an identical protocol.

## Metrics

- [Brier Score](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa.md?metric=Brier%20Score>): Lower is better; unit: SCALAR.

- [SNR Gain](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa.md?metric=SNR%20Gain>): Higher is better; unit: SCALAR.

- [Confidence AUC](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa.md?metric=Confidence%20AUC>): Higher is better; unit: SCALAR.

- [Absolute Accuracy](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa.md?metric=Absolute%20Accuracy>): Higher is better; unit: PERCENT.

- [Smooth ECE](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa.md?metric=Smooth%20ECE>): Lower is better; unit: SCALAR.

- [NLL](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa.md?metric=NLL>): Lower is better; unit: SCALAR.

- [Prediction Accuracy](<https://www.sota2.com/research/sota/confidence-calibration-on-simpleqa.md?metric=Prediction%20Accuracy>): Higher is better; unit: PERCENT.

## Recorded results

| Method | Brier Score | Result date | Report paper |
| --- | --- | --- | --- |
| Probe (train on TriviaQA) | 0.0386 | Not recorded | 6993f5e19ebc499c974098b5 |
| P(True) | 0.0419 | Not recorded | 6993f5e19ebc499c974098b5 |
| Probe (train on TriviaQA) | 0.06 | Not recorded | 6993f5e19ebc499c974098b5 |
| Probe (train on TriviaQA) | 0.0638 | Not recorded | 6993f5e19ebc499c974098b5 |
| GPT-5 | 0.178 | Not recorded | 694b739553fdd5c361739b4e |
| Verbalized confidence | 0.1957 | Not recorded | 6993f5e19ebc499c974098b5 |
| Claude-sonnet-4.5 | 0.214 | Not recorded | 694b739553fdd5c361739b4e |
| Verbalized confidence | 0.2676 | Not recorded | 6993f5e19ebc499c974098b5 |
| Claude-sonnet-4.5 | 0.284 | Not recorded | 694b739553fdd5c361739b4e |
| Uniform random baseline | 0.301 | Not recorded | 6993f5e19ebc499c974098b5 |
| GLM-4.6 | 0.31 | Not recorded | 694b739553fdd5c361739b4e |
| Uniform random baseline | 0.3109 | Not recorded | 6993f5e19ebc499c974098b5 |
| Uniform random baseline | 0.3133 | Not recorded | 6993f5e19ebc499c974098b5 |
| Grok-4 | 0.327 | Not recorded | 694b739553fdd5c361739b4e |
| Confidence-Brier | 0.341 | Not recorded | 694b739553fdd5c361739b4e |
| Gemini-2.5-pro | 0.436 | Not recorded | 694b739553fdd5c361739b4e |
| Probe (train on GSM8K) | 0.4451 | Not recorded | 6993f5e19ebc499c974098b5 |
| Verbalized confidence | 0.4736 | Not recorded | 6993f5e19ebc499c974098b5 |
| Probe (train on MATH) | 0.4846 | Not recorded | 6993f5e19ebc499c974098b5 |
| Critic Value | 0.525 | Not recorded | 694b739553fdd5c361739b4e |
| Probe (train on GSM8K) | 0.5465 | Not recorded | 6993f5e19ebc499c974098b5 |
| Probe (train on MATH) | 0.5871 | Not recorded | 6993f5e19ebc499c974098b5 |
| P(True) | 0.6072 | Not recorded | 6993f5e19ebc499c974098b5 |
| P(True) | 0.6151 | Not recorded | 6993f5e19ebc499c974098b5 |
| Probe (train on GSM8K) | 0.7048 | Not recorded | 6993f5e19ebc499c974098b5 |
| Qwen3-4B-Instruct | 0.762 | Not recorded | 694b739553fdd5c361739b4e |
| Probe (train on MATH) | 0.8297 | Not recorded | 6993f5e19ebc499c974098b5 |

### Probe (train on TriviaQA)

Brier Score: 0.0386. Result ID: 699a7ca75698665ec406207b.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Olmo-3-7B-Instruct","Cost":"\< 1"}. This record does not assert independent reproduction.

### P(True)

Brier Score: 0.0419. Result ID: 699a7ca75698665ec406207a.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6df71e209131cea3d034.md>)

Recorded evaluation configuration: {"LLM":"Olmo-3-7B-Instruct","Cost":"1"}. This record does not assert independent reproduction.

### Probe (train on TriviaQA)

Brier Score: 0.06. Result ID: 699a7ca75698665ec4062087.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"gpt-oss-20b","Cost":"\< 1"}. This record does not assert independent reproduction.

### Probe (train on TriviaQA)

Brier Score: 0.0638. Result ID: 699a7ca75698665ec4062081.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Qwen3-8B","Cost":"\< 1"}. This record does not assert independent reproduction.

### GPT-5

Brier Score: 0.178. Result ID: 699945b25698665ec4afd56a.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

Recorded evaluation configuration: {"Zero-shot":true}. This record does not assert independent reproduction.

### Verbalized confidence

Brier Score: 0.1957. Result ID: 699a7ca75698665ec4062085.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6cc21e209131cea35d72.md>)

Recorded evaluation configuration: {"LLM":"gpt-oss-20b","Cost":"L"}. This record does not assert independent reproduction.

### Claude-sonnet-4.5

Brier Score: 0.214. Result ID: 699945b25698665ec4afd569.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

Recorded evaluation configuration: {"Thinking":true,"Zero-shot":true}. This record does not assert independent reproduction.

### Verbalized confidence

Brier Score: 0.2676. Result ID: 699a7ca75698665ec4062079.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6cc21e209131cea35d72.md>)

Recorded evaluation configuration: {"LLM":"Olmo-3-7B-Instruct","Cost":"L"}. This record does not assert independent reproduction.

### Claude-sonnet-4.5

Brier Score: 0.284. Result ID: 699945b25698665ec4afd566.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

Recorded evaluation configuration: {"Thinking":false,"Zero-shot":true}. This record does not assert independent reproduction.

### Uniform random baseline

Brier Score: 0.301. Result ID: 699a7ca75698665ec4062084.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"gpt-oss-20b","Cost":"N/A"}. This record does not assert independent reproduction.

### GLM-4.6

Brier Score: 0.31. Result ID: 699945b25698665ec4afd567.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

Recorded evaluation configuration: {"Zero-shot":true}. This record does not assert independent reproduction.

### Uniform random baseline

Brier Score: 0.3109. Result ID: 699a7ca75698665ec406207e.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Qwen3-8B","Cost":"N/A"}. This record does not assert independent reproduction.

### Uniform random baseline

Brier Score: 0.3133. Result ID: 699a7ca75698665ec4062078.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Olmo-3-7B-Instruct","Cost":"N/A"}. This record does not assert independent reproduction.

### Grok-4

Brier Score: 0.327. Result ID: 699945b25698665ec4afd564.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

Recorded evaluation configuration: {"Zero-shot":true}. This record does not assert independent reproduction.

### Confidence-Brier

Brier Score: 0.341. Result ID: 699945b25698665ec4afd568.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

[Method origin paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

Recorded evaluation configuration: {"Base Model":"Qwen3-4B-Instruct","Training Mode":"confidence-Brier","Zero-shot":true}. This record does not assert independent reproduction.

### Gemini-2.5-pro

Brier Score: 0.436. Result ID: 699945b25698665ec4afd562.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa7c311e209131cea8cef5.md>)

Recorded evaluation configuration: {"Zero-shot":true}. This record does not assert independent reproduction.

### Probe (train on GSM8K)

Brier Score: 0.4451. Result ID: 699a7ca75698665ec4062082.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Qwen3-8B","Cost":"\< 1"}. This record does not assert independent reproduction.

### Verbalized confidence

Brier Score: 0.4736. Result ID: 699a7ca75698665ec406207f.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6cc21e209131cea35d72.md>)

Recorded evaluation configuration: {"LLM":"Qwen3-8B","Cost":"L"}. This record does not assert independent reproduction.

### Probe (train on MATH)

Brier Score: 0.4846. Result ID: 699a7ca75698665ec406207d.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Olmo-3-7B-Instruct","Cost":"\< 1"}. This record does not assert independent reproduction.

### Critic Value

Brier Score: 0.525. Result ID: 699945b25698665ec4afd565.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

[Method origin paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

Recorded evaluation configuration: {"Base Model":"Qwen3-4B-Instruct","Training Mode":"ppo-value","Zero-shot":true}. This record does not assert independent reproduction.

### Probe (train on GSM8K)

Brier Score: 0.5465. Result ID: 699a7ca75698665ec406207c.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Olmo-3-7B-Instruct","Cost":"\< 1"}. This record does not assert independent reproduction.

### Probe (train on MATH)

Brier Score: 0.5871. Result ID: 699a7ca75698665ec4062089.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"gpt-oss-20b","Cost":"\< 1"}. This record does not assert independent reproduction.

### P(True)

Brier Score: 0.6072. Result ID: 699a7ca75698665ec4062080.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6df71e209131cea3d034.md>)

Recorded evaluation configuration: {"LLM":"Qwen3-8B","Cost":"1"}. This record does not assert independent reproduction.

### P(True)

Brier Score: 0.6151. Result ID: 699a7ca75698665ec4062086.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa6df71e209131cea3d034.md>)

Recorded evaluation configuration: {"LLM":"gpt-oss-20b","Cost":"L"}. This record does not assert independent reproduction.

### Probe (train on GSM8K)

Brier Score: 0.7048. Result ID: 699a7ca75698665ec4062088.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"gpt-oss-20b","Cost":"\< 1"}. This record does not assert independent reproduction.

### Qwen3-4B-Instruct

Brier Score: 0.762. Result ID: 699945b25698665ec4afd563.

[Reporting paper](<https://www.sota2.com/research/paper/694b739553fdd5c361739b4e.md>)

[Method origin paper](<https://www.sota2.com/research/paper/68fa788e1e209131cea79116.md>)

Recorded evaluation configuration: {"Zero-shot":true}. This record does not assert independent reproduction.

### Probe (train on MATH)

Brier Score: 0.8297. Result ID: 699a7ca75698665ec4062083.

[Reporting paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

[Method origin paper](<https://www.sota2.com/research/paper/6993f5e19ebc499c974098b5.md>)

Recorded evaluation configuration: {"LLM":"Qwen3-8B","Cost":"\< 1"}. This record does not assert independent reproduction.

Page 1 of 1. This is an index page, not the full collection.
