$2.50 in / $15.00 out
- Context: 1.05M
- Providers: 19
- Tool calling
- Structured output
- Reasoning
- Vision
Best AI models · 2026-05-12
Best AI Models for Agents in 2026
Models that combine tool calling, structured output and reasoning support.
How we picked these
- Tool calling is mandatory.
- Structured output adds reliability on tool results parsing.
- Reasoning support helps multi-step plans.
- Larger output limit and context wins ties.
Top 10 picks
$5.00 in / $30.00 out
- Context: 1.05M
- Providers: 17
- Tool calling
- Structured output
- Reasoning
- Vision
$30.00 in / $180.00 out
- Context: 1.05M
- Providers: 8
- Tool calling
- Structured output
- Reasoning
- Vision
$1.74 in / $3.48 out
- Context: 1M
- Providers: 24
- Tool calling
- Structured output
- Reasoning
- Open weights
$0.140 in / $0.280 out
- Context: 1M
- Providers: 15
- Tool calling
- Structured output
- Reasoning
- Open weights
$16.50 in / $82.50 out
- Context: 1M
- Providers: 1
- Tool calling
- Structured output
- Reasoning
- Vision
$5.00 in / $25.00 out
- Context: 1M
- Providers: 1
- Tool calling
- Structured output
- Reasoning
- Vision
$5.00 in / $25.00 out
- Context: 1M
- Providers: 1
- Tool calling
- Structured output
- Reasoning
- Vision
$5.00 in / $25.00 out
- Context: 1M
- Providers: 1
- Tool calling
- Structured output
- Reasoning
- Vision
$3.30 in / $16.50 out
- Context: 1M
- Providers: 1
- Tool calling
- Structured output
- Reasoning
- Vision
Recommended stack by tier
Same shortlist sliced four ways — pick the tier that matches your budget and constraints.
Budget
DeepSeek$0.140 in / $0.280 out · 1M ctx
Lowest total per-1M-token cost in this list ($0.42).
Lowest-cost option that still meets the use case. Pick this when you have high volume or strict unit-economics.
Balanced
Anthropic$5.00 in / $25.00 out · 1M ctx
Median price ($30.00) — typically the safest default.
Good-enough quality at a mid-tier price. The default choice for most production apps.
Premium
OpenAI$30.00 in / $180.00 out · 1.05M ctx
Highest-priced pick in the list ($210.00) — usually the flagship.
Highest-capability model in this list. Pick when accuracy or reasoning matters more than cost.
Open-weight
No fit in this list
Open weights — self-host on your own GPUs, fine-tune on private data, run offline. Pricing here reflects the cheapest API host.
Frequently asked questions
Which AI model is the best for production agents in 2026?
Right now we put GPT-5.4 from OpenAI at the top, primarily because it scores highest on the agent triad — tool calling, structured output and reasoning — with a workable output token limit. Rankings are recomputed from live model metadata — see "How we picked these" above for the exact rule.
What is the cheapest option in this list?
DeepSeek V4 Flash (DeepSeek) is the lowest-priced pick at $0.140 per 1M input tokens and $0.280 per 1M output tokens. Costs from other entries scale up from there.
How are these rankings generated?
Each pick comes from a programmatic rule defined in our use-case-rules config: a hard filter (e.g. tool calling required, context ≥ 100K) plus a numeric score combining capability, context window and price. We never hand-curate the order, but we do hand-curate the rule. The full data source is the models.dev API, refreshed daily.
How often is this page updated?
The underlying model data is refreshed once per day from models.dev, and the static page is rebuilt when the data changes. The 'Last updated' date below shows the most recent rebuild.
Why is tool calling a hard requirement?
Coding and agent workflows almost always need to invoke external tools — the editor, a shell, a test runner, a database. Without first-class function calling, you have to parse free-form text the model emits, which is fragile in production.
Explore more
Top picks · model details
- GPT-5.4$2.50 in / $15.00 out
- GPT-5.5$5.00 in / $30.00 out
- GPT-5.5 Pro$30.00 in / $180.00 out
- DeepSeek V4 Pro$1.74 in / $3.48 out
- DeepSeek V4 Flash$0.14 in / $0.28 out
Other best-of lists
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Last updated:
Prices in USD per 1M tokens. Unknown means the provider does not publish per-token pricing.
Data is sourced from models.dev and normalized for comparison. Prices and capabilities may change. Always verify critical production decisions with the provider's official documentation.