Grok Code Fast 1 vs Mistral NeMo

xAI · US  |  Mistral · France · Updated June 2026

Quick verdict

Pick Grok Code Fast 1 for fast, cheap agentic coding at $0.20/$1.50 or low-latency code generation and terminal tasks. Pick Mistral NeMo for multilingual understanding across 11+ languages or runs on a single gpu with fp8 quantization-aware training. Choose Mistral NeMo if you need self-hosting or data privacy; Grok Code Fast 1 if you want a managed API.

Grok Code Fast 1 (xAI, US) and Mistral NeMo (Mistral, France) line up two different AI ecosystems against each other — a comparison that is as much about cost philosophy and openness as raw capability. Grok Code Fast 1 is xAI's speed-tier coding model at $0.20/$1.50 with a 256K window — cheap, fast agentic code over frontier quality. Mistral NeMo is a 12B Apache-2.0 open-weight model co-developed by Mistral and NVIDIA, pairing a 128K context and strong multilingual performance with efficiency that fits on a single GPU. They diverge most on price, context window and open vs. closed weights — each quantified below from the models' real specs.

Key differences at a glance

Side-by-side specs

SpecGrok Code Fast 1Mistral NeMo
ProviderxAI (US) Mistral (France)
ReleasedAugust 28, 2025 July 18, 2024
Context window256K (~384 pages) 128K (~197 pages)
Price (in/out)$0.2/$1.5 per 1M tokens $0.02/$0.03 per 1M tokens
Open weight?No — API only Yes — self-hostable
Modalitiestext, code text
SWE-Bench VerifiedNot published Not published
MRCR v2 @ 1MNot published Not published

Who wins what

Fast, cheap agentic coding at $0.20/$1.50

Grok Code Fast 1

Mistral NeMo is comparatively weak here — 12B scale trails larger frontier models on complex reasoning and coding

Low-latency code generation and terminal tasks

Grok Code Fast 1

XAI's speed-tier coding model at $0.20/$1.50 with a 256K window — cheap, fast agentic code over frontier quality — and it carries the larger 256K context.

High-volume coding pipelines where speed beats peak quality

Grok Code Fast 1

XAI's speed-tier coding model at $0.20/$1.50 with a 256K window — cheap, fast agentic code over frontier quality — and it is the newer of the two.

Multilingual understanding across 11+ languages

Mistral NeMo

A 12B Apache-2.0 open-weight model co-developed by Mistral and NVIDIA, pairing a 128K context and strong multilingual performance with efficiency that fits on a single GPU — and it runs cheaper at $0.02/$0.03 per 1M tokens.

Runs on a single GPU with FP8 quantization-aware training

Mistral NeMo

A 12B Apache-2.0 open-weight model co-developed by Mistral and NVIDIA, pairing a 128K context and strong multilingual performance with efficiency that fits on a single GPU — and its weights are open while Grok Code Fast 1 is API-only.

128K-token context for long documents

Mistral NeMo

Mistral NeMo lists 128K-token context for long documents among its strengths; Grok Code Fast 1 does not.

Lowest cost at scale

Mistral NeMo

At $0.02/$0.03 per 1M tokens, it is the cheaper of the two — the gap dominates the bill on high-volume workloads.

Largest single-prompt input

Grok Code Fast 1

Its 256K window is about 2× larger than Mistral NeMo's 128K, fitting roughly 384 pages in one prompt.

Which should you pick?

A cost-sensitive startup shipping high volume

Mistral NeMo

At $0.02/$0.03 per 1M tokens it undercuts Grok Code Fast 1, and on millions of tokens that margin decides the monthly bill.

Someone analysing very long documents or codebases

Grok Code Fast 1

Larger 256K window fits more in one prompt.

A team with data-privacy or self-hosting needs

Mistral NeMo

Open weights let you run it on your own hardware; Grok Code Fast 1 is API-only.

Anyone whose priority is fast, cheap agentic coding at $0.20/$1.50

Grok Code Fast 1

It is specifically built for that.

Anyone whose priority is multilingual understanding across 11+ languages

Mistral NeMo

That is its strongest area.

An enterprise with regional data-residency rules

Grok Code Fast 1 or Mistral NeMo

Origin (US vs France) affects where data is processed and which compliance regime applies — check the provider's terms for your region.

Grok Code Fast 1: where it fits

XAI's speed-tier coding model at $0.20/$1.50 with a 256K window — cheap, fast agentic code over frontier quality. Released August 28, 2025 by xAI, it is built for fast, cheap agentic coding at $0.20/$1.50, low-latency code generation and terminal tasks, high-volume coding pipelines where speed beats peak quality, and a 256K window sized for real codebases.

Its trade-offs are real: text and code only — no image, audio or video input, xAI did not publish a SWE-Bench Verified score, a speed-tier coding model, not a frontier reasoner, and narrow focus — built for code, not general knowledge work. At $0.2 in / $1.5 out per million tokens, it sits in the budget price band.

Mistral NeMo: where it fits

A 12B Apache-2.0 open-weight model co-developed by Mistral and NVIDIA, pairing a 128K context and strong multilingual performance with efficiency that fits on a single GPU. Released July 18, 2024 by Mistral, it is built for multilingual understanding across 11+ languages, runs on a single GPU with FP8 quantization-aware training, 128K-token context for long documents, and function calling and structured tool use.

Its trade-offs: 12B scale trails larger frontier models on complex reasoning and coding, and text-only; no vision or audio input. At $0.02 in / $0.03 out per million tokens, it sits in the budget price band.

The bottom line for this matchup

The defining split here is open vs. closed. Mistral NeMo gives you weights you control — self-host it, fine-tune it, keep data in-house, pay only for hardware. Grok Code Fast 1 gives you a managed, always-updated API with no infrastructure to run. Teams with GPUs, privacy requirements, or huge volume often favour the open model; teams that want zero ops and the latest capabilities favour the closed one. Capability is close enough that this operational question, not the benchmark, usually decides it.

Want both Grok Code Fast 1 and Mistral NeMo without two subscriptions? LumiChats gives you these plus 40+ models under one ₹69/day pass (about $1/day) — draft with one, cross-check with the other.

See pricing

Frequently asked questions

Is Grok Code Fast 1 or Mistral NeMo better for coding?

Public SWE-Bench figures are not available for either model, so the honest test is your own repository — run an identical real bug through both. By design, Grok Code Fast 1 leans toward fast, cheap agentic coding at $0.20/$1.50 while Mistral NeMo leans toward multilingual understanding across 11+ languages, and that positioning usually predicts which feels better on your codebase.

Which is cheaper, Grok Code Fast 1 or Mistral NeMo?

Mistral NeMo is open-weight, so self-hosting means no per-token fee (you pay for hardware instead), while Grok Code Fast 1 is API-metered at $0.2/$1.5 per 1M tokens. For most teams without GPUs, the API model is cheaper to start; at very high volume, self-hosting can win.

Which has the bigger context window?

Grok Code Fast 1 — 256K vs 128K, about 2× larger. Useful only if the model actually reasons over the full window, which not all do.

Can I use both Grok Code Fast 1 and Mistral NeMo together?

Yes — a multi-model platform like LumiChats gives you Grok Code Fast 1, Mistral NeMo and 40+ others under one ₹69/day pass (about $1/day), so you can draft with one and cross-check with the other instead of buying two subscriptions.

Which is newer, Grok Code Fast 1 or Mistral NeMo?

Grok Code Fast 1 — released August 28, 2025, about 14 months after Mistral NeMo.

Related comparisons

Specifications and benchmarks reflect publicly reported figures as of June 2026 and may change as providers release updates. Always verify on your own workload.