Which is better for coding — GPT-5.1 Codex High or LongCat-Flash-Lite?

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 Codex High or LongCat-Flash-Lite?

API pricing data is available on the individual model pages.

Which has a larger context window — GPT-5.1 Codex High or LongCat-Flash-Lite?

Context window data is available on the individual model pages.

GPT-5.1 Codex High vs LongCat-Flash-Lite: Specs & Benchmark Comparison

Characteristic	GPT-5.1 Codex High	LongCat-Flash-Lite
Company	OpenAI	Meituan
Release Date	November 11, 2025	February 4, 2026
Parameters	—	69B
Multimodal	Yes	No
Context (input)	400K	—
Context (output)	128K	—
Input Price / 1M	$1.25	—
Output Price / 1M	$10.00	—
Average Score	1.0	0.8

Verdict

LongCat-Flash-Lite leads in 1 out of 2 comparison categories.

Overall Performance

Both models show comparable average scores: GPT-5.1 Codex High — 1.0, LongCat-Flash-Lite — 0.8.

Recency

LongCat-Flash-Lite is newer: released 2/4/2026 vs 11/11/2025.

More About These Models

GPT-5.1 Codex High

OpenAI — specs, benchmarks, API

LongCat-Flash-Lite

Meituan — specs, benchmarks, API

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The GPT-5.1 Codex High and LongCat-Flash-Lite 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 Codex High or LongCat-Flash-Lite page. See also the complete list of AI model comparisons.