Claude Mythos 5.1 vs Codestral

Pricing verdict: Claude Mythos 5.1 vs Codestral: Codestral is cheaper for input-heavy usage ($0.30/M vs $10.00/M input tokens), while Claude Mythos 5.1 is better for long-context tasks (1,000,000 tokens).

Direct answer: choose Codestral for lower token spend and choose Claude Mythos 5.1 when your workload needs longer context.

Compare API pricing, input and output token costs, context windows, and monthly estimates on one page so you can pick the right model fast.

Anthropic

Claude Mythos 5.1

Mistral AI

Codestral

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Claude Mythos 5.1 pricing page Codestral pricing page Anthropic provider overview Mistral AI provider overview

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

Claude Mythos 5.1

Per Request:$0.035

Daily:$3.50

Monthly:$105.00

Yearly:$1,277.50

Codestral

Per Request:$0.000750

Daily:$0.075

Monthly:$2.25

Yearly:$27.375

Cost Differences

$0.03425

Per Request

$3.425

Daily

$102.75

Monthly

$1,250.125

Yearly

Codestral costs less than Claude Mythos 5.1

Quick Recommendation

Winner for direct API pricing: Codestral. At the default workload, Codestral saves about $102.75/month ($1,250.125/year) versus Claude Mythos 5.1.

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Feature Comparison

Feature	Claude Mythos 5.1	Codestral
Provider	Anthropic	Mistral AI
Input Price	$10.00/1M tokens	$0.30/1M tokens
Output Price	$50.00/1M tokens	$0.90/1M tokens
Context Window	1,000,000 tokens	128,000 tokens
Max Output	128,000 tokens	32,768 tokens
Category	flagship	balanced
Capabilities	textvisionreasoningcode	textcode
Release Date	9/1/2026	7/30/2025

Claude Mythos 5.1 vs Codestral: Which Should You Choose?

Choosing between Claude Mythos 5.1 and Codestral depends on your priorities: cost efficiency, context length, or raw capability. Codestral is the more affordable option at $0.30/1M input tokens — 97% cheaper than Claude Mythos 5.1. Meanwhile, Claude Mythos 5.1 offers a significantly larger context window at 1,000,000 tokens vs 128,000 for Codestral.

These models come from different providers — Anthropic and Mistral AI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Anthropic, switching to Mistral AIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.

These models target different tiers: Claude Mythos 5.1 is a flagship model while Codestral is balanced. This means they're optimized for different workloads. Claude Mythos 5.1 is built for complex tasks that require deeper reasoning, while Codestral offers better value for routine operations.

Output costs matter too. Claude Mythos 5.1 charges $50.00/1M output tokens vs $0.90 for Codestral. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. Codestral has the edge here at $0.90/1M output tokens.

Multimodal capabilities: Claude Mythos 5.1 supports vision (image inputs) while Codestral is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose Claude Mythos 5.1 when:

• You need a larger context window (1,000,000 tokens)
• You need more capabilities (vision, reasoning)
• You need longer outputs (up to 128,000 tokens)
• You're already using Anthropic's API ecosystem

Choose Codestral when:

• Budget is a primary concern
• You're already using Mistral AI's API ecosystem

Pros and Caveats at a Glance

Claude Mythos 5.1

• Input pricing: $10.00/M tokens
• Output pricing: $50.00/M tokens
• Context window: 1,000,000 tokens
• Max output: 128,000 tokens

Watch out for

• Higher input cost than Codestral
• Higher output cost than Codestral

Codestral

• Input pricing: $0.30/M tokens
• Output pricing: $0.90/M tokens
• Context window: 128,000 tokens
• Max output: 32,768 tokens

Watch out for

• Smaller context window than Claude Mythos 5.1

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

Claude Mythos 5.1 (Anthropic)

Cost Calculator

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Model

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Output Tokens

Requests/Day

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Codestral (Mistral AI)

Cost Calculator

Provider

Model

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Requests/Day

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Start using Claude Mythos 5.1 today

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Frequently Asked Questions

Which is cheaper, Claude Mythos 5.1 or Codestral?▼

Codestral is cheaper for input tokens at $0.30 per million tokens vs $10.00 for Claude Mythos 5.1 — that's 97% savings on input costs.

What is the context window difference between Claude Mythos 5.1 and Codestral?▼

Claude Mythos 5.1 supports 1,000,000 tokens while Codestral supports 128,000 tokens — a difference of 872,000 tokens in favor of Claude Mythos 5.1.

Which model is better for AI Chatbot?▼

Both models support text. For ai chatbot, Codestral is the lower-cost option, while Claude Mythos 5.1 offers a larger context window (1,000,000 vs 128,000 tokens). Choose Codestral for budget sensitivity or Claude Mythos 5.1 for longer context tasks.

Which model has better overall pricing for heavy usage?▼

At 100 requests/day with 1,000 input and 500 output tokens each, Claude Mythos 5.1 costs about $105.00/month and Codestral costs about $2.25/month. Overall, Codestral has lower combined input + output rates ($0.30 in, $0.90 out) vs Claude Mythos 5.1.

Where can I compare Anthropic and Mistral AI API pricing beyond this model matchup?▼

See the Anthropic vs Mistral AI provider comparison page for lineup-level averages, then review each model page for exact per-token rates.