gpt-oss-20b vs MiniMax M3.1 Flash

Price, context window & benchmark comparison

OpenAI

gpt-oss-20b

OpenAI
$0.03 / $0.13
Input / Output · per 1M tokens
VS
MiniMax

MiniMax M3.1 Flash

MiniMax
$0.15 / $0.60
Input / Output · per 1M tokens
Compare different models
OpenAI
MiniMax
Verdict: gpt-oss-20b is 4.8× cheaper than MiniMax M3.1 Flash on a typical 3:1 input/output mix. MiniMax M3.1 Flash has the larger context window (1M vs 131K).
gpt-oss-20bMiniMax M3.1 Flash
Input price / 1M$0.03$0.15
Output price / 1M$0.13$0.60
Blended price (3:1)$0.055$0.26
Cached input / 1M$0.03$0.015
Context window131K1M
Max output118K524K
Intelligence index—29.1
Coding index20.7—
Providers—11
Best provider uptime (30m)—100.0%
Vision inputNoYes
ReasoningYesYes
Tool callingYesYes
Released2025-08-052026-10-19
Retirement——

Cost calculator

FAQ

Which is cheaper, gpt-oss-20b or MiniMax M3.1 Flash?

gpt-oss-20b is 4.8× cheaper than MiniMax M3.1 Flash on a typical 3:1 input/output mix.

gpt-oss-20b vs MiniMax M3.1 Flash: which has a bigger context window?

gpt-oss-20b: 131,072 tokens. MiniMax M3.1 Flash: 1,048,576 tokens.

How much would 1 million requests cost?

At 2,000 input + 500 output tokens per request: gpt-oss-20b ≈ $125.00, MiniMax M3.1 Flash ≈ $600.00.

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