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o1 Preview — Retired model

Retired modelThis model has reached end of life and is no longer available through BazaarLink. Historical specifications and independent benchmarks remain below. Retired on May 1, 2026.

The latest and strongest model family from OpenAI, o1 is designed to spend more time thinking before responding. The o1 models are optimized for math, science, programming, and other STEM-related tasks. They consistently exhibit PhD-level accuracy on benchmarks in physics, chemistry, and biology. Learn more in the [launch announcement](https://openai.com/o1). Note: This model is currently experimental and not suitable for production use-cases, and may be heavily rate-limited.

ProviderOpenAI
ReleasedSeptember 2024
Model IDopenai/o1-preview

Technical specifications

Context window
128K tokens
Reasoning
Input
Text
Output
Text

Independent benchmarks

Scores below come from Artificial Analysis, an independent third party. BazaarLink does not participate in the testing.

Intelligence 17
Coding 34
Math
MMLU
GPQA
This modelCategory leader
Coding ability
#105out of 198 models
LiveCodeBench / SciCode and similar
Overall intelligence
#264out of 573 models
Aggregated across academic benchmarks
Time to first token
🥇
#1out of 586 models
AA 全球 p50:0.00 秒
Intelligence
17
Mid-tier
This model
17
Category leader
61
Median
15
Coding
34
Mid-tier
This model
34
Category leader
78
Median
37

Top 5 — CodingCoding Index leaderboard

1GPT-5.6 Sol (xhigh)openai/gpt-5-6-sol-xhigh78$5 / $30
4GPT-5.6 Sol (high)openai/gpt-5-6-sol-high77$5 / $30
5Claude Opus 5 (Adaptive Reasoning, Xhigh Effort)anthropic/claude-opus-5-xhigh77$5 / $25
AASource: Artificial Analysis · Independent third-party evaluation; not influenced by BazaarLinkView full evaluation on AA →
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Frequently Asked Questions

Can I still use the retired o1 Preview model?

No. o1 Preview has been retired and is retained here only as a historical reference. See the active alternatives linked on this page.

Relay integrity checks

No integrity-check data is available for this model yet.

BazaarLink Probe verifies endpoints that claim to serve this model and flags behavior that differs from the reference baseline.

View the full integrity report →

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