Benchmark avg
97.3
4 tracked scores
OpenAI · ProprietaryGPT-5.3 Codex
Active
Model portfolio
GPT-5.3 Codex
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OpenAI · Released 2026-02-05 · v2026-02-05 · Closed · Context 400K tokens
Language Cap
66
Cadle Language Cap 66 · 20%
Benchmark average
—
Not enough benchmark results yet
Pricing
$1.75
$14.00 / 1M out · 6.3 pts/$
MODEL MATRIX · TRUTH CENTER CELLS
Overall
—
Intelligence
100.0
Coding
—
Agentic
—
MMLU
—
GPQA
—
Math
—
LiveCodeBench
—
HumanEval
—
Reason
—
ARC-AGI
—
Coverage AVG
—
Cadle Cap ranks models with within-benchmark percentiles so ARC-AGI ~40 and MMLU ~90 never compete raw. Coverage AVG is an importance-weighted mean of filled expert cells only — blanks are skipped, not zeroed.
CADLE INSIGHTS
Only measured signals
Strongest signal
epoch-eci
Score 157.1
Blended $/1M
$15.75
In $1.75 · Out $14.00
Value index
6.2
Quality ÷ blended $/1M (higher is better)
Context
400K
Provider context window (not max output)
Intel index
100.0
Matrix AA IQ cell
SPEED · COST · QUALITY
Measured matrix and verified gateway observations only.
- Cadle Intelligence
- 100.0
- Input $/1M
- $1.75
- Output $/1M
- $14.00
- Value pts/$
- 6.35
DESCRIPTION + DETAILS
PROVIDER
OpenAI
RELEASE
2026-02-05
CONTEXT
400K tokens
STATUS
ACTIVE
COMMUNITY REVIEWS
Community Reviews & Field Notes
Verified EngineersReal operator evaluations, prompt robustness observations, and deployment notes for GPT-5.3 Codex.
4.5(2)
Leave a Field Observation
Rating:5 - Frontier benchmark
Role:
Tag topic:
Reviews are publicly visible to the engineering community.
Inference OperatorProduction Deployer Verified
Oct 28, 2026
Tested GPT-5.3 Codex on high-concurrency tool loops. Token generation remains consistent under sustained context load, with minimal prompt drift on complex JSON schemas.
Autonomous Agent LeadEval Maintainer Verified
Oct 24, 2026
Evaluated GPT-5.3 Codex on multi-turn code synthesis. Code reasoning and diff application succeed on ~88% of test suites. Best paired with strict system prompt guardrails.
MODEL COMPARISON
| Metric | |
|---|---|
| Provider | OpenAI |
| Release | 2026-02-05 |
| Input / 1M | $1.75 |
| Output / 1M | $14.00 |
| Context | 400K tokens |
| Cadle Cap | 66 |
| Cap board | Cadle Language Cap 66 |
| terminal-bench | 78.4 |
| metr-time-horizons | 74.5 |
| weirdml | 79.3 |
| epoch-eci | 157.1 |
DATA PROVENANCE
Scores may use different scales — check the Benchmarks tab for source links.
- Supabase models
- Cadle public observations
SOURCE TRACKING
Evidence linked to this model — listing, hub, benchmarks, or live gateway prices.
API
OpenAI listing
MEASURED CELLS
Same Truth Center numbers as the datasheet above. Accuracy, reliability, safety, and cost scores are not invented.
AA IQ100