GPT-5.4 vs Grok Build 0.1
GPT-5.4 (2026) and Grok Build 0.1 (2026) compare a standalone API model against a coding-specialized model. GPT-5.4 ships a 1.05m-token context window, while Grok Build 0.1 ships a 256k-token context window. On SWE-bench Verified, GPT-5.4 leads by 0.9 pts. On pricing, GPT-5.4 ranges from $2.50 to $5/1M input tokens by tier; Grok Build 0.1 ranges from $1 to $2/1M input tokens by tier. This page treats the result as workflow and deployment fit, not a universal model winner.
Treat this as a product-type comparison: GPT-5.4 is standalone API model, while Grok Build 0.1 is coding-specialized model. Choose based on workflow fit before reading any benchmark or price row as decisive.
Decision scorecard
Local evidence first| Signal | GPT-5.4 | Grok Build 0.1 |
|---|---|---|
| Product type | Standalone API model | Coding-specialized model |
| Best for | reasoning-heavy apps, multimodal apps, and tool-calling agents | custom coding agents, code generation, and tool loops |
| Decision fit | Coding, RAG, and Agents | Coding, RAG, and Agents |
| Context window | 1.05m | 256k |
| Cheapest output | $15/1M tokens | $2/1M tokens |
| Provider routes | 3 tracked | 3 tracked |
| Shared benchmarks | SWE-bench Verified leader | 1 rows |
Decision tradeoffs
- GPT-5.4 holds a shared-benchmark lead on SWE-bench Verified, ahead by 0.9 points.
- GPT-5.4 has the larger context window for long prompts, retrieval packs, or transcript analysis.
- GPT-5.4 uniquely exposes Code execution in local model data.
- Local decision data tags GPT-5.4 for Coding, RAG, and Agents.
- Grok Build 0.1 has the lower cheapest tracked output price at $2/1M tokens.
- Local decision data tags Grok Build 0.1 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.
GPT-5.4
$5,750
Cheapest tracked route/tier: OpenAI API
Grok Build 0.1
$1,300
Cheapest tracked route/tier: xAI Console
Estimated monthly gap: $4,450. Batch, cache, alternate speed tiers, and negotiated pricing are excluded from this local estimate.
Switch friction
- Provider overlap exists on Vercel AI Gateway and OpenRouter; start route-level A/B tests there.
- Grok Build 0.1 is $13/1M tokens lower on cheapest tracked output pricing before cache, batch, or negotiated discounts.
- Check replacement coverage for Code execution before moving production traffic.
- Provider overlap exists on OpenRouter and Vercel AI Gateway; start route-level A/B tests there.
- GPT-5.4 is $13/1M tokens higher on cheapest tracked output pricing, so quality gains need to justify the spend.
- GPT-5.4 adds Code execution in local capability data.
Specs
| Specification | ||
|---|---|---|
| Released | 2026-03-05 | 2026-05-14 |
| Context window | 1.05m | 256k |
| Parameters | — | — |
| Architecture | decoder only | - |
| License | Proprietary | Proprietary |
| Openness | Proprietary | Proprietary |
| Commercial use | Commercial use with conditions | Commercial use with conditions |
| Knowledge cutoff | 2025-08 | - |
Pricing and availability
| Pricing attribute | GPT-5.4 | Grok Build 0.1 |
|---|---|---|
| Input price |
|
|
| Output price |
|
|
| Providers |
Capabilities
| Capability | GPT-5.4 | Grok Build 0.1 |
|---|---|---|
| Vision | Yes | Yes |
| Multimodal | Yes | Yes |
| Reasoning | Yes | Yes |
| Function calling | Yes | Yes |
| 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 | GPT-5.4 | Grok Build 0.1 |
|---|---|---|
| SWE-bench Verified | 71.7 | 70.8 |
Deep dive
On shared benchmark coverage, SWE-bench Verified has GPT-5.4 at 71.7 and Grok Build 0.1 at 70.8, with GPT-5.4 ahead by 0.9 points. The largest visible gap is 0.9 points on SWE-bench Verified, which matters most when that benchmark mirrors your workload. Treat isolated benchmark wins as directional, because provider routing, prompt style, and tool access can move real application results.
The capability footprint differs most on code execution: GPT-5.4. Both models share vision, multimodal input, reasoning mode, and function calling, so the practical split is not just feature count. Use those differences to decide whether the page is about raw model quality, agentic coding support, multimodal ingestion, or predictable structured API behavior.
For cost, GPT-5.4 lists tiered pricing: 0-272,000t is $2.50/1M input and $15/1M output; 272,000t+ is $5/1M input and $22.50/1M output, while Grok Build 0.1 lists tiered pricing: 0-200,001t is $1/1M input and $2/1M output; 200,001t+ is $2/1M input and $4/1M output. A 70/30 input-output blend puts Grok Build 0.1 lower by about $4.95 per million blended tokens. For tiered rows, this cheapest-track view can understate interactive or fast-lane spend, so compare the tier you will actually use. Availability is 3 providers versus 3, so concentration risk also matters.
Choose GPT-5.4 when coding workflow support and larger context windows are central to the workload. Choose Grok Build 0.1 when coding workflow support and lower cheapest-tier input-token cost are more important. For production, rerun your own prompts through the exact provider, region, and tool stack you plan to ship.
FAQ
Which has a larger context window, GPT-5.4 or Grok Build 0.1?
GPT-5.4 supports 1.05m tokens, while Grok Build 0.1 supports 256k tokens. That gap matters most for long documents, large codebases, retrieval-heavy agents, and conversations where earlier context must remain visible.
Which is cheaper, GPT-5.4 or Grok Build 0.1?
GPT-5.4 lists tiered pricing: 0-272,000t is $2.50/1M input and $15/1M output; 272,000t+ is $5/1M input and $22.50/1M output. Grok Build 0.1 lists tiered pricing: 0-200,001t is $1/1M input and $2/1M output; 200,001t+ is $2/1M input and $4/1M output. Compare the tier you will actually use; cheap async pricing can overstate savings for interactive workflows. Provider discounts or batch pricing can still change the final bill.
Is GPT-5.4 or Grok Build 0.1 open source?
GPT-5.4 is listed under Proprietary. Grok Build 0.1 is listed under Proprietary. License labels affect whether you can self-host, redistribute weights, or rely only on hosted APIs, so confirm the upstream license before deployment.
Which is better for vision, GPT-5.4 or Grok Build 0.1?
Both GPT-5.4 and Grok Build 0.1 expose vision. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Which is better for multimodal input, GPT-5.4 or Grok Build 0.1?
Both GPT-5.4 and Grok Build 0.1 expose multimodal input. The better choice depends on benchmark fit, context budget, pricing, and whether your provider route exposes the same capability surface. Use this as a quick comparison signal, then confirm the provider-specific limits before committing to production.
Where can I run GPT-5.4 and Grok Build 0.1?
GPT-5.4 is available on OpenAI API, OpenRouter, and Vercel AI Gateway. Grok Build 0.1 is available on xAI Console, Vercel AI Gateway, and OpenRouter. Provider coverage can affect latency, region availability, compliance posture, and fallback options.
Continue comparing
Last reviewed: 2026-06-06. Data sourced from public model cards and provider documentation.