GLM-5.1 vs Mistral Large 2

Name: GLM-5.1
Author: Zhipu AI

GLM-5.1 (2026) and Mistral Large 2 (2025) are frontier reasoning models from Zhipu AI and MistralAI. GLM-5.1 ships a 200k-token context window, while Mistral Large 2 ships a 128k-token context window. On Chatbot Arena, GLM-5.1 leads by 210 pts. On pricing, Mistral Large 2 costs $0.48/1M input tokens versus $1.05/1M for the alternative. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

Mistral Large 2 is ~119% cheaper at $0.48/1M; pay for GLM-5.1 only for coding workflow support.

Decision scorecard

Local evidence first

Signal	GLM-5.1	Mistral Large 2	How to read it
Best for	reasoning-heavy apps, tool-calling agents, and provider-routed production	multimodal apps, tool-calling agents, and provider-routed production	Use-case synthesis from product type, capability flags, context, and provider data.
Decision fit	Coding, RAG, and Agents	Coding, RAG, and Agents	Primary workload tags from local decision data.
Context window	200k	128k	Higher is better when prompts, retrieval chunks, or transcripts are large.
Cheapest output	$3.50/1M tokens	$2.40/1M tokens	Cheapest tracked provider route; verify your exact region and tier.
Provider routes	5 tracked	3 tracked	Broader coverage can reduce vendor lock-in and fallback risk.
Shared benchmarks	Chatbot Arena leader	1 shared	Visible benchmark lead is 210 points on Chatbot Arena.

Decision tradeoffs

Choose GLM-5.1 when...

GLM-5.1 holds a shared-benchmark lead on Chatbot Arena, ahead by 210 points.
GLM-5.1 has the larger context window for long prompts, retrieval packs, or transcript analysis.
GLM-5.1 has broader tracked provider coverage for fallback and route flexibility.
GLM-5.1 uniquely exposes Reasoning and Code execution in local model data.
Local decision data tags GLM-5.1 for Coding, RAG, and Agents.

Choose Mistral Large 2 when...

Mistral Large 2 has the lower cheapest tracked output price at $2.40/1M tokens.
Mistral Large 2 uniquely exposes Vision and Multimodal in local model data.
Local decision data tags Mistral Large 2 for Coding, RAG, and Agents.

Monthly cost at traffic

Estimate token spend from the cheapest tracked input and output route or tier on this page.

Lower estimate Mistral Large 2

Requests / monthInput tokens / requestOutput tokens / request

GLM-5.1

$1,715

Cheapest tracked route/tier: OpenRouter

Mistral Large 2

$984

Cheapest tracked route/tier: AWS Bedrock

Estimated monthly gap: $731. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

GLM-5.1 -> Mistral Large 2

No overlapping tracked provider route is sourced for GLM-5.1 and Mistral Large 2; plan for SDK, billing, or endpoint changes.
Mistral Large 2 is $1.10/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
Check replacement coverage for Reasoning and Code execution before moving production traffic.
Mistral Large 2 adds Vision and Multimodal in local capability data.

Mistral Large 2 -> GLM-5.1

No overlapping tracked provider route is sourced for Mistral Large 2 and GLM-5.1; plan for SDK, billing, or endpoint changes.
GLM-5.1 is $1.10/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
Check replacement coverage for Vision and Multimodal before moving production traffic.
GLM-5.1 adds Reasoning and Code execution in local capability data.

Specs

Specification	GLM-5.1 Zhipu AI	Mistral Large 2 MistralAI
Released	2026-04-07	2025-11-25
Context window	200k	128k
Parameters	754B total, 40B active	123B
Architecture	Mixture of Experts	Decoder Only
License	MITOSI-approved	Mistral License
Openness	Open source	Open weights
Weights	Available	Unknown
Code	Unknown	Unknown
Commercial use	Commercial use: permitted	Commercial use: non-commercial
Knowledge cutoff	2025-11	2025-07

Pricing and availability

Pricing attribute	GLM-5.1	Mistral Large 2
Input price	$1.05/1M tokens	$0.48/1M tokens
Output price	$3.50/1M tokens	$2.40/1M tokens
Providers	Z.ai OpenRouter Fireworks AI Vercel AI Gateway Novita AI	IBM watsonx AWS Bedrock Mistral AI Studio

Capabilities

Capability	GLM-5.1	Mistral Large 2
Vision	No	Yes
Multimodal	No	Yes
Reasoning	Yes	No
JSON / Tool use	Yes	Yes
Structured outputs	Yes	Yes
Code execution	Yes	No
IDE integration	No	No
Computer use	No	No
Parallel agents	No	No

Benchmarks

Benchmark	GLM-5.1	Mistral Large 2
Chatbot Arena	1475.0	1265.0

Continue comparing

Model pages

Labs and families

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Last reviewed: 2026-06-30. Data sourced from public model cards and provider documentation.

Both models

GLM-5.1 Mistral Large 2