Which is better for coding — GPT-5.1 Thinking or GPT-5.2?

Direct comparison on the SWE-Bench benchmark is not available. We recommend reviewing other metrics on the comparison page.

Which model is cheaper — GPT-5.1 Thinking or GPT-5.2?

GPT-5.2 is cheaper for input: $1.50 per 1M tokens vs $3.00.

Which has a larger context window — GPT-5.1 Thinking or GPT-5.2?

GPT-5.1 Thinking supports a larger context: 256,000 tokens vs 256,000.

GPT-5.1 Thinking vs GPT-5.2: Specs & Benchmark Comparison

Characteristic	GPT-5.1 Thinking	GPT-5.2
Company	OpenAI	OpenAI
Release Date	November 11, 2025	December 10, 2025
Parameters	—	—
Multimodal	Yes	Yes
Context (input)	256K	256K
Context (output)	128K	128K
Input Price / 1M	$3.00	$1.50
Output Price / 1M	$12.00	$6.00
Average Score	0.9	1.0
Benchmarks
AIME 2025	0.9	1.0
GPQA	0.9	0.9
TAU2 Telecom	1.0	1.0

Visual Benchmark Comparison

GPT-5.1 Thinking

GPT-5.2

AIME 20250.9 vs 1.0

0.9

1.0

GPQA0.9 vs 0.9

0.9

TAU2 Telecom1.0 vs 1.0

1.0

Verdict

GPT-5.2 leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: GPT-5.1 Thinking — 0.9, GPT-5.2 — 1.0.

API Cost

GPT-5.2 is 2.0x cheaper: input $1.50/1M vs $3.00/1M tokens.

Context Window

Same context size: 256K tokens.

Recency

GPT-5.2 is newer: released 12/10/2025 vs 11/11/2025.

More About These Models

GPT-5.1 Thinking

OpenAI — specs, benchmarks, API

GPT-5.2

OpenAI — specs, benchmarks, API

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All model comparisons →

The GPT-5.1 Thinking and GPT-5.2 comparison is updated for 2026. Data includes benchmark results, API pricing, context window size and other specifications. For more detailed information, visit the GPT-5.1 Thinking or GPT-5.2 page. See also the complete list of AI model comparisons.