DeepSeek V3 vs Grok Code Fast 1
DeepSeek V3 (2024) and Grok Code Fast 1 (2025) compare a standalone API model against a coding-specialized model. DeepSeek V3 ships a 64k-token context window, while Grok Code Fast 1 ships a 262k-token context window. On pricing, DeepSeek V3 costs $0.10/1M input tokens versus $0.20/1M for the alternative. This page treats the result as workflow and deployment fit, not a universal model winner.
Treat this as a product-type comparison: DeepSeek V3 is standalone API model, while Grok Code Fast 1 is coding-specialized model. Choose based on workflow fit before reading any benchmark or price row as decisive.
Decision scorecard
Local evidence first| Signal | DeepSeek V3 | Grok Code Fast 1 |
|---|---|---|
| Product type | Standalone API model | Coding-specialized model |
| Best for | tool-calling agents and provider-routed production | custom coding agents, code generation, and tool loops |
| Decision fit | Coding, Agents, and Classification | Coding, RAG, and Agents |
| Context window | 64k | 262k |
| Cheapest output | $0.30/1M tokens | $1.50/1M tokens |
| Provider routes | 13 tracked | 3 tracked |
| Shared benchmarks | 0 shared | 0 shared |
Decision tradeoffs
- DeepSeek V3 has the lower cheapest tracked output price at $0.30/1M tokens.
- DeepSeek V3 has broader tracked provider coverage for fallback and route flexibility.
- Local decision data tags DeepSeek V3 for Coding, Agents, and Classification.
- Grok Code Fast 1 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- Local decision data tags Grok Code Fast 1 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.
DeepSeek V3
$155
Cheapest tracked route/tier: Bitdeer AI
Grok Code Fast 1
$535
Cheapest tracked route/tier: OpenRouter
Estimated monthly gap: $380. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on OpenRouter and Microsoft Foundry; start route-level A/B tests there.
- Grok Code Fast 1 is $1.20/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- Provider overlap exists on Microsoft Foundry and OpenRouter; start route-level A/B tests there.
- DeepSeek V3 is $1.20/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
Specs
| Specification | ||
|---|---|---|
| Released | 2024-12-26 | 2025-08-27 |
| Context window | 64k | 262k |
| Parameters | 671B | 314B |
| Architecture | Mixture of Experts | Mixture of Experts |
| License | MITOSI-approved | Proprietary |
| Openness | Open source | Proprietary |
| Weights | Available | Not released |
| Code | Unknown | Unknown |
| Commercial use | Commercial use: permitted | Commercial use: conditional |
| Knowledge cutoff | 2024-04 | - |
Pricing and availability
| Pricing attribute | DeepSeek V3 | Grok Code Fast 1 |
|---|---|---|
| Input price | $0.10/1M tokens | $0.20/1M tokens |
| Output price | $0.30/1M tokens | $1.50/1M tokens |
| Providers |
Capabilities
| Capability | DeepSeek V3 | Grok Code Fast 1 |
|---|---|---|
| Vision | No | No |
| Multimodal | No | No |
| Reasoning | No | 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
No shared benchmark scores are currently available for this pair.
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Last reviewed: 2026-07-10. Data sourced from public model cards and provider documentation.