Grok 4.20 Experimental beta 0304 Reasoning
xAI chatGrok 4.20 Experimental beta 0304 Reasoning is a xAI chat model.It supports a 1,000,000-token context windowwith up to 1,000,000 output tokens.Input is priced at $1.25/M tokens and output at $2.50/M tokens. Capabilities include function calling, vision, reasoning, prompt caching. Route Grok 4.20 Experimental beta 0304 Reasoning via Future AGI's Agent Command Center for unified observability, caching, and 15 routing strategies including cost-optimized fallback.
Estimate Grok 4.20 Experimental beta 0304 Reasoning spend
Pick a workload, fine-tune the sliders, and see the monthly bill.
Estimate uses $1.25/M input · $2.50/M output. Provider pricing changes. Production costs vary with retries, streaming overhead, and tool-call rounds.
Want this for free? Cache + route via Agent Command Center — first 100K requests and 100K cache hits free every month.
Pricing
Per-token rates, expressed in USD per 1M tokens. Verified Oct 22, 2026.
| Input | $1.25/M | |
| Output | $2.50/M | |
| Blended (3:1 in:out) | $1.56/M Cross-model comparable price | |
| Cached input | $0.200/M |
Context & limits
- Context window
- 1,000,000 tokens
- Max input
- 1,000,000 tokens
- Max output
- 1,000,000 tokens
- Modalities
- vision, text
Capabilities
- Function calling ✓ supported
- Parallel tool calls — not advertised
- Vision input ✓ supported
- Audio input — not advertised
- Audio output — not advertised
- PDF input — not advertised
- Streaming ✓ supported
- Structured output ✓ supported
- Prompt caching ✓ supported
- Reasoning ✓ supported
Strengths & caveats — when to pick Grok 4.20 Experimental beta 0304 Reasoning
Data-driven from Grok 4.20 Experimental beta 0304 Reasoning's percentile within chat peers.
Where it's strong
- +long-context tasks — context window in the top 11% of peers
- +long-form generation — 1,000,000-token max output, top-1% of peers
Watch out for
- No major caveats flagged from public spec.
Benchmarks pending
We haven't logged public benchmark scores for Grok 4.20 Experimental beta 0304 Reasoning yet. Have one to contribute? Submit a source — citations help us prioritise.
Call Grok 4.20 Experimental beta 0304 Reasoning via Agent Command Center
One OpenAI-compatible endpoint. Routing, fallback, semantic caching, guardrails, and cost tracking come along for the ride. First 100K requests + 100K cache hits free every month.
agentcc / @agentcc/client). Per-call metadata — provider, cost, latency, cache hit, request id — is returned on x-agentcc-* response headers, so any HTTP client can read it.# Grok 4.20 Experimental beta 0304 Reasoning via the Agent Command Center Python SDK
# pip install agentcc
import os
from agentcc import AgentCC
client = AgentCC(
api_key=os.environ["AGENTCC_API_KEY"], # from app.futureagi.com → Settings → API Keys
base_url="https://gateway.futureagi.com/v1",
)
resp = client.chat.completions.create(
model="xai/grok-4-20-experimental-beta-0304-reasoning",
messages=[{"role": "user", "content": "Hello, Grok 4.20 Experimental beta 0304 Reasoning!"}],
)
print(resp.choices[0].message.content)
print(f"Tokens: {resp.usage.total_tokens}")
# Per-call gateway metadata is returned on x-agentcc-* response headers.
# When you need it programmatically, use .with_raw_response to get them:
raw = client.chat.completions.with_raw_response.create(
model="xai/grok-4-20-experimental-beta-0304-reasoning",
messages=[{"role": "user", "content": "Same call, but I want the headers."}],
)
print("Provider:", raw.headers.get("x-agentcc-provider"))
print("Latency:", raw.headers.get("x-agentcc-latency-ms"), "ms")
print("Cost: ", raw.headers.get("x-agentcc-cost"), "USD")
print("Cache: ", raw.headers.get("x-agentcc-cache"))AGENTCC_API_KEY with a key fromapp.futureagi.com.Gateway docs ↗Explore similar models
Grok 4.20 Experimental beta 0304 Reasoning doesn't have a public Arena ELO score yet, so we group by provider only — quality-tier comparisons need a benchmark. Side-by-side links appear where a comparison page exists; otherwise, open the model profile.
FAQ
How much does Grok 4.20 Experimental beta 0304 Reasoning cost?
Input is priced at $1.25 per 1M tokens and output at $2.50 per 1M tokens (xAI, last verified Oct 22, 2026).
What is the context window of Grok 4.20 Experimental beta 0304 Reasoning?
Grok 4.20 Experimental beta 0304 Reasoning supports a 1,000,000-token context window with up to 1,000,000 output tokens.
Does Grok 4.20 Experimental beta 0304 Reasoning support function calling?
Yes — Grok 4.20 Experimental beta 0304 Reasoning supports function (tool) calling.
Is Grok 4.20 Experimental beta 0304 Reasoning good for production?
Grok 4.20 Experimental beta 0304 Reasoning is well-suited for long-context tasks — context window in the top 11% of peers and long-form generation — 1,000,000-token max output, top-1% of peers.
How can I route to Grok 4.20 Experimental beta 0304 Reasoning with fallback?
Use Agent Command Center: a single OpenAI-compatible endpoint that supports cost-optimized routing, latency-aware retries, model fallback, and shadow traffic. Configure once, swap models without app changes.
Useful links for Grok 4.20 Experimental beta 0304 Reasoning
Official sources, independent benchmarks, and pricing aggregators — no random search-engine guesses.
Third-party evals — verify the marketing.
Cross-check our number against the rest of the ecosystem.