DeepSeek V4 Flash vs Mistral Large 2

Name: DeepSeek V4 Flash
Author: DeepSeek

DeepSeek V4 Flash (2026) and Mistral Large 2 (2025) are frontier reasoning models from DeepSeek and MistralAI. DeepSeek V4 Flash ships a 1m-token context window, while Mistral Large 2 ships a 128k-token context window. On MMLU PRO, DeepSeek V4 Flash leads by 16.7 pts. This comparison covers specs, pricing, API access, capabilities, benchmarks, input and output token costs, and production fit for coding and agent workloads.

DeepSeek V4 Flash fits 8x more tokens; pick it for long-context work and Mistral Large 2 for tighter calls.

Decision scorecard

Local evidence first

Signal	DeepSeek V4 Flash	Mistral Large 2	How to read it
Best for	reasoning-heavy apps, tool-calling agents, and long-context analysis	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	1m	128k	Higher is better when prompts, retrieval chunks, or transcripts are large.
Cheapest output	$0.12/1M 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	MMLU PRO leader	4 shared	Visible benchmark lead is 16.7 points on MMLU PRO.

Decision tradeoffs

Choose DeepSeek V4 Flash when...

DeepSeek V4 Flash holds a shared-benchmark lead on MMLU PRO, ahead by 16.7 points.
DeepSeek V4 Flash has the larger context window for long prompts, retrieval packs, or transcript analysis.
DeepSeek V4 Flash has the lower cheapest tracked output price at $0.12/1M tokens.
DeepSeek V4 Flash has broader tracked provider coverage for fallback and route flexibility.
DeepSeek V4 Flash uniquely exposes Reasoning in local model data.

Choose Mistral Large 2 when...

Mistral Large 2 holds a shared-benchmark lead on HumanEval, ahead by 15.3 points.
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 DeepSeek V4 Flash

Requests / monthInput tokens / requestOutput tokens / request

DeepSeek V4 Flash

$76.26

Cheapest tracked route/tier: OpenRouter

Mistral Large 2

$984

Cheapest tracked route/tier: AWS Bedrock

Estimated monthly gap: $908. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.

Switch friction

DeepSeek V4 Flash -> Mistral Large 2

No overlapping tracked provider route is sourced for DeepSeek V4 Flash and Mistral Large 2; plan for SDK, billing, or endpoint changes.
Mistral Large 2 is $2.28/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
Check replacement coverage for Reasoning before moving production traffic.
Mistral Large 2 adds Vision and Multimodal in local capability data.

Mistral Large 2 -> DeepSeek V4 Flash

No overlapping tracked provider route is sourced for Mistral Large 2 and DeepSeek V4 Flash; plan for SDK, billing, or endpoint changes.
DeepSeek V4 Flash is $2.28/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
Check replacement coverage for Vision and Multimodal before moving production traffic.
DeepSeek V4 Flash adds Reasoning in local capability data.

Specs

Specification	DeepSeek V4 Flash DeepSeek	Mistral Large 2 MistralAI
Released	2026-04-24	2025-11-25
Context window	1m	128k
Parameters	284B	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	-	2025-07

Pricing and availability

Pricing attribute	DeepSeek V4 Flash	Mistral Large 2
Input price	Off-peak $0.22/1M tokens All UTC hours outside DeepSeek's peak windows. Cache-hit input: $0.007 per 1M tokens; cache-miss input: $0.22 per 1M; output: $0.66 per 1M. Peak $0.44/1M tokens 01:00-04:00 and 06:00-10:00 UTC. Cache-hit input: $0.014 per 1M tokens; cache-miss input: $0.44 per 1M; output: $1.32 per 1M.	$0.48/1M tokens
Output price	Off-peak $0.66/1M tokens All UTC hours outside DeepSeek's peak windows. Cache-hit input: $0.007 per 1M tokens; cache-miss input: $0.22 per 1M; output: $0.66 per 1M. Peak $1.32/1M tokens 01:00-04:00 and 06:00-10:00 UTC. Cache-hit input: $0.014 per 1M tokens; cache-miss input: $0.44 per 1M; output: $1.32 per 1M.	$2.40/1M tokens
Providers	DeepSeek Platform OpenRouter Microsoft Foundry Vercel AI Gateway Novita AI	IBM watsonx AWS Bedrock Mistral AI Studio

Capabilities

Capability	DeepSeek V4 Flash	Mistral Large 2
Vision	No	Yes
Multimodal	No	Yes
Reasoning	Yes	No
JSON / Tool use	Yes	Yes
Structured outputs	Yes	Yes
Code execution	No	No
IDE integration	No	No
Computer use	No	No
Parallel agents	No	No

Benchmarks

Benchmark	DeepSeek V4 Flash	Mistral Large 2
MMLU PRO	86.4	69.7
HumanEval	69.5	84.8
Chatbot Arena	1437.0	1265.0
Massive Multitask Language Understanding	88.7	84.0

Continue comparing

Model pages

Labs and families

Related comparisons

Popular comparisons for DeepSeek V4 Flash

Popular comparisons for Mistral Large 2

Last reviewed: 2026-07-03. Data sourced from public model cards and provider documentation.

Both models

DeepSeek V4 Flash Mistral Large 2