Model Comparison

GPT OSS 120B vs MiMo-V2-Flash

MiMo-V2-Flash significantly outperforms across most benchmarks. MiMo-V2-Flash is 1.2x cheaper per token.

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Performance Benchmarks

Comparative analysis across standard metrics

2 benchmarks

GPT OSS 120B outperforms in 0 benchmarks, while MiMo-V2-Flash is better at 2 benchmarks (GPQA, Humanity's Last Exam).

MiMo-V2-Flash significantly outperforms across most benchmarks.

Thu May 14 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

MiMo-V2-Flash costs less

For input processing, GPT OSS 120B ($0.09/1M tokens) is 1.1x cheaper than MiMo-V2-Flash ($0.10/1M tokens).

For output processing, GPT OSS 120B ($0.45/1M tokens) is 1.5x more expensive than MiMo-V2-Flash ($0.30/1M tokens).

In conclusion, GPT OSS 120B is more expensive than MiMo-V2-Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Thu May 14 2026 • llm-stats.com

GPT OSS 120B

Input tokens$0.09

Output tokens$0.45

Best providerDeepinfra

MiMo-V2-Flash

Input tokens$0.10

Output tokens$0.30

Best providerXiaomi

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Model Size

Parameter count comparison

192.2B diff

MiMo-V2-Flash has 192.2B more parameters than GPT OSS 120B, making it 164.6% larger.

GPT OSS 120B

116.8Bparameters

MiMo-V2-Flash

309.0Bparameters

116.8B

GPT OSS 120B

309.0B

MiMo-V2-Flash

Context Window

Maximum input and output token capacity

MiMo-V2-Flash accepts 256,000 input tokens compared to GPT OSS 120B's 131,072 tokens. GPT OSS 120B can generate longer responses up to 131,072 tokens, while MiMo-V2-Flash is limited to 16,384 tokens.

GPT OSS 120B

Input131,072 tokens

Output131,072 tokens

MiMo-V2-Flash

Input256,000 tokens

Output16,384 tokens

Thu May 14 2026 • llm-stats.com

License

Usage and distribution terms

GPT OSS 120B is licensed under Apache 2.0, while MiMo-V2-Flash uses MIT.

License differences may affect how you can use these models in commercial or open-source projects.

GPT OSS 120B

Apache 2.0

Open weights

MiMo-V2-Flash

MIT

Open weights

Release Timeline

When each model was launched

GPT OSS 120B was released on 2025-08-05, while MiMo-V2-Flash was released on 2025-12-16.

MiMo-V2-Flash is 4 months newer than GPT OSS 120B.

GPT OSS 120B

Aug 5, 2025

9 months ago

MiMo-V2-Flash

Dec 16, 2025

4 months ago

4mo newer

Knowledge Cutoff

When training data ends

Neither model specifies a knowledge cutoff date.

Unable to compare the recency of their training data.

No cutoff dates available

Provider Availability

GPT OSS 120B is available from DeepInfra, Novita, OpenAI, Fireworks, Groq. MiMo-V2-Flash is available from Xiaomi.

GPT OSS 120B

Deepinfra

Input Price:Input: $0.09/1MOutput Price:Output: $0.45/1M

Novita

Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

OpenAI

Input Price:Input: $0.10/1MOutput Price:Output: $0.50/1M

Fireworks

Input Price:Input: $0.15/1MOutput Price:Output: $0.60/1M

Groq

Input Price:Input: $0.15/1MOutput Price:Output: $0.60/1M

MiMo-V2-Flash

Xiaomi

Input Price:Input: $0.10/1MOutput Price:Output: $0.30/1M

* Prices shown are per million tokens

Outputs Comparison

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Key Takeaways

GPT OSS 120B

View details

OpenAI

Less expensive input tokens

MiMo-V2-Flash

View details

Xiaomi

Larger context window (256,000 tokens)

Less expensive output tokens

Higher GPQA score (83.7% vs 80.1%)

Higher Humanity's Last Exam score (22.1% vs 14.9%)

Detailed Comparison

AI Model Comparison Table
Feature	GPT OSS 120B	MiMo-V2-Flash

FAQ

Common questions about GPT OSS 120B vs MiMo-V2-Flash.

Which is better, GPT OSS 120B or MiMo-V2-Flash?

MiMo-V2-Flash significantly outperforms across most benchmarks. GPT OSS 120B is made by OpenAI and MiMo-V2-Flash is made by Xiaomi. The best choice depends on your use case — compare their benchmark scores, pricing, and capabilities above.

How does GPT OSS 120B compare to MiMo-V2-Flash in benchmarks?

GPT OSS 120B scores MMLU: 90.0%, CodeForces: 82.1%, GPQA: 80.1%, TAU-bench Retail: 67.8%, HealthBench: 57.6%. MiMo-V2-Flash scores AIME 2025: 94.1%, Arena-Hard v2: 86.2%, MMLU-Pro: 84.9%, HMMT 2025: 84.4%, GPQA: 83.7%.

Is GPT OSS 120B cheaper than MiMo-V2-Flash?

GPT OSS 120B is 1.1x cheaper for input tokens. GPT OSS 120B costs $0.09/M input and $0.45/M output via deepinfra. MiMo-V2-Flash costs $0.10/M input and $0.30/M output via xiaomi.

What are the context window sizes for GPT OSS 120B and MiMo-V2-Flash?

GPT OSS 120B supports 131K tokens and MiMo-V2-Flash supports 256K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between GPT OSS 120B and MiMo-V2-Flash?

Key differences include context window (131K vs 256K), input pricing ($0.09 vs $0.10/M), licensing (Apache 2.0 vs MIT). See the full comparison above for benchmark-by-benchmark results.

Who makes GPT OSS 120B and MiMo-V2-Flash?

GPT OSS 120B is developed by OpenAI and MiMo-V2-Flash is developed by Xiaomi.