Which is better for coding — GPT-5.1 Instant or MiniMax M2.1?

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 Instant or MiniMax M2.1?

GPT-5.1 Instant is cheaper for input: $0.30 per 1M tokens vs $0.30.

Which has a larger context window — GPT-5.1 Instant or MiniMax M2.1?

MiniMax M2.1 supports a larger context: 1,000,000 tokens vs 256,000.

GPT-5.1 Instant vs MiniMax M2.1: Specs & Benchmark Comparison

Characteristic	GPT-5.1 Instant	MiniMax M2.1
Company	OpenAI	MiniMax
Release Date	November 11, 2025	December 22, 2025
Parameters	—	—
Multimodal	Yes	No
Context (input)	256K	1.0M
Context (output)	32K	100K
Input Price / 1M	$0.30	$0.30
Output Price / 1M	$1.20	$1.20
Average Score	0.9	0.9
Benchmarks
GPQA	0.9	0.8

Visual Benchmark Comparison

GPT-5.1 Instant

MiniMax M2.1

GPQA0.9 vs 0.8

0.9

0.8

Verdict

MiniMax M2.1 leads in 2 out of 4 comparison categories.

Overall Performance

Both models show comparable average scores: GPT-5.1 Instant — 0.9, MiniMax M2.1 — 0.9.

API Cost

API cost is identical: input $0.30/1M, output $1.20/1M tokens.

Context Window

MiniMax M2.1 supports a larger context: 1M vs 256K tokens.

Recency

MiniMax M2.1 is newer: released 12/22/2025 vs 11/11/2025.

More About These Models

GPT-5.1 Instant

OpenAI — specs, benchmarks, API

MiniMax M2.1

MiniMax — specs, benchmarks, API

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All model comparisons →

The GPT-5.1 Instant and MiniMax M2.1 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 Instant or MiniMax M2.1 page. See also the complete list of AI model comparisons.