AI model reference · 2026
GPT-5.2
GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1.
- Context window
- 400,000 tokens
- Maximum output
- 128,000 tokens
- Base provider API input
- $1.75 / 1M tokens
- Base provider API rate
- Published evidence
- 3 benchmarks, 2 Arena results
Overview
About GPT-5.2
A concise catalog overview. Technical limits and published evaluation evidence are listed separately below.
GPT-5.2 is the latest frontier-grade model in the GPT-5 series, offering stronger agentic and long context perfomance compared to GPT-5.1.
Published evaluations
Benchmark results
Only results mapped to this exact model and backed by a named source appear here. Different evaluation protocols are not treated as interchangeable.
| Benchmark | Score | Evaluation details | Source |
|---|---|---|---|
| SWE-Bench VerifiedA human-validated subset of real GitHub issues used to measure whether a coding agent can produce repository patches that resolve the associated tests. | 72.8% | ResolvedVersion: SWE-Bench Verified 500 · Split: Verified, 500 tasks · Harness: mini-SWE-agent / version 2.0.0 · Attempts: One attempt · Reasoning effort: highProtocol note: Harness version: 2.0.0; Run date: 2026-02-17Methodology | SWE-benchBenchmark owner |
| LiveBenchA contamination-resistant benchmark refreshed on a fixed release cadence. Scores from different LiveBench releases must never be compared as the same protocol. | 74.6% | Mean of category averagesVersion: LiveBench 2026-06-25 · Split: 2026-06-25 release, 23 tasks across seven categories · Reasoning effort: highProtocol note: Overall is the mean of category averages. This protocol is not comparable with the 2026-01-08 release.Methodology | LiveBenchBenchmark owner |
| Vending-Bench 2Tests AI models ability to manage a simulated vending machine business over a year | 3,952.01 | Money Balance ($)The published protocol is not fully disclosed.Methodology | andonlabs.comLegacy leaderboard |
Human preference
Arena results
Arena scores come from blind human preference votes. They are reported separately from task benchmarks and are not used as substitutes for missing benchmark results.
| Category | Score | Rank | Votes | Status |
|---|---|---|---|---|
| Arena TextBlind human preference score for text responses. | 1,435±3 | #82 | 78,662 | Published |
| Arena WebDevBlind human preference score for code and web development. | 1,419±23 | #55 | 1,049 | Published |
Technical reference
Specifications and API facts
Technical limits and reference provider prices come from the current catalog unless a reviewed external source is listed. Missing values stay marked as unavailable.
- Provider
- OpenAI
- Release date
- Not available in reviewed sources
- Catalog added
- Dec 10, 2025
- Context window
- 400,000 tokens
- Maximum output
- 128,000 tokens
- Knowledge cutoff
- Not available in reviewed sources
- License
- Not available in reviewed sources
- Input types
- File, Image, Text
- Output types
- Text
- Reasoning
- Supported
- Provider endpoint tool parameters
- Accepts tool parameters
- Base provider API input
- $1.75 / 1M tokens
- Base provider cached input
- $0.175 / 1M tokens
- Base provider API output
- $14 / 1M tokens
These are reference provider API rates, not Writingmate checkout charges. Access in Writingmate follows the allowances of your Writingmate plan.
Provenance
Sources and update status
Source links are attached to the facts and evaluations they support. Catalog-only values are not presented as independently verified claims.
- Arena TextArena AI · Retrieved Aug 9, 2026
- Arena WebDevArena AI · Retrieved Aug 9, 2026
- LiveBench 2026-06-25 LeaderboardLiveBench · Retrieved Aug 9, 2026
- SWE-bench Verified Bash Only LeaderboardSWE-bench · Retrieved Aug 9, 2026
- Vending-Bench 2andonlabs.com · Retrieved Dec 28, 2025
- OpenRouter model catalogOpenRouter
Evidence last updated Aug 9, 2026.
Catalog record updated Dec 10, 2025.
Catalog-added dates describe when a model entered the catalog, not necessarily its public release date.
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